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It’s MLB Trade Deadline Day, and as we head to the eleventh hour, YESNetwork.com has you covered. Check back here this afternoon for the latest trade news ahead of the 4 p.m. ET deadline, and of course, you can always check out our MLB Trade Tracker to see every deal that has been made over the last couple weeks.

5 p.m. Final Update: Broxton details and Joba's return

Cincinnati will be sending two pitchers, lefty reliever Donnie Joseph (8-3, 1.72 ERA, 68 K in 52.1 IP between Double-A Pensacola and Triple-A Louisville) and righty starter J.C. Sulbaran (7-7, 4.04 ERA in 19 starts for Pensacola), to Kansas City for Jonathan Broxton. The team has also designated former Yankee Andrew Brackman for assignment; the 6-foot-10 righty went 1-3 with a 9.87 ERA in five starts at Louisville in April, and then was sent down to High-A Bakersfield, where he was 0-2 with a 5.12 ERA in 18 games (three starts). Also, in a non-trade move, rumors are swirling that the Yankees may activate RHP Joba Chamberlain from the disabled list today. He is scheduled to pitch in Trenton tonight, but stay tuned to YESNetwork.com for more from the Stadium.

4:40 p.m. Update: Dempster's return, Boston's minor deal

The two players going from Texas to Chicago for Ryan Dempster are both from Class-A Myrtle Beach: third baseman Christian Villanueva (.285-10-59) and RHP Kyle Hendricks (5-8, 2.82 in 20 starts).

Also, the Red Sox have sent 1B/OF Lars Anderson (.259-9-52 at Triple-A Pawtucket) to Cleveland for RHP Steven Wright (9-6, 2.49 ERA in 20 starts for Double-A Akron).

4:15 p.m. Update: Yankees on the board, snag McGehee from PIT

The Yankees finally struck a deal moments before the 4 p.m. deadline, acquiring 1B/3B Casey McGehee from Pittsburgh for RHP Chad Qualls.

McGehee hit .230 with eight homers and 35 RBI for the Pirates this season, and became expendable when the Pirates acquired Gaby Sanchez from Miami earlier in the day. He played mostly first base, but played 147 games at third for Milwaukee in 2011 and can fill in at either corner in the absences of Mark Teixeira and Alex Rodriguez.

Qualls was acquired from Philadelphia on July 1, and allowed five earned runs in eight appearances (7.1 IP) with the Yankees. Overall, he is 2-1 with a 4.89 ERA in 43 games with the Yankees and Phillies this season.

4 p.m. Update: Dempster to Texas

We've reached the deadline, so expect a handful of trade announcements to leak out in the next hour or so. But one of the biggest fish of the day has apparently been caught by Texas, who will send two yet unnamed minor leaguers to the Cubs for RHP Ryan Dempster. The Yankees may or may not have been in the Dempster sweepstakes until the bitter end, but it's the Lone Star State and not the Big Apple (or Hollywood) that will by Ryan's new stomping grounds.

3:45 p.m. Update: More Pirates, Broxton to Reds

The Cincinnati Reds have bolstered their bullpen, acquiring RHP Jonathan Broxton from Kansas City. Broxton had a 2.27 ERA and 23 saves for the Royals this season while filling in for injured closer Joakim Soria, but will likely serve as a bridge to fellow flame-thrower Aroldis Chapman in Cincy. No word yet on what the Royals will get in return.

Also, RHP Kyle Kaminska is headed to Pittsburgh as part of the Gaby Sanchez deal. Kaminska was 6-3 with a 5.11 ERA in 31 games at Double-A Jacksonville.

3:15 p.m. Update: Red Sox acquire Craig Breslow

Jack Magruder of FOX Sports Arizona has confirmed on Twitter that the Diamondbacks have traded left-hander Craig Breslow to the Red Sox for outfielder Scott Podsednik and right-hander Matt Albers. Breslow, a native of Connecticut, was 2-0 with a 2.70 ERA and 42 strikeouts in 40 games for the D-Backs; Podsednik hit .287 with seven RBI and six steals in just 62 AB for the Sox, while Albers was 2-0 with a 2.29 ERA in 40 appearances out of the Boston bullpen.

3 p.m. Update: Marlins to deal two; Dempster says LAD, NYY or TEX?

According to Peter Gammons, the Marlins have agreed to trade RHP Edward Mujica (4.38 ERA in 41 appearances) to St. Louis for minor league 3B Zachary Cox (.254-9-30 at Triple-A Memphis), and FOX/MLB Network insider Ken Rosenthal reported moments ago that the Marlins will also trade 1B Gaby Sanchez (.302-5-18 at Triple-A New Orleans, .202-3-17 in the Majors) to Pittsburgh for OF Gorkys Hernandez (.257-2-25 at Triple-A Indianapolis, .083 in 24 AB with the Pirates) and a future draft pick.

Also, MLB Network reports that Ryan Dempster has told the Dodgers that he will accept trades to the Dodgers, Yankees, or Rangers, and that talks between the Phillies and Orioles about Joe Blanton are "back on and serious."

2:45 p.m. Update: One Lee off the market, another one on?

According to ESPN insider Jayson Stark, the Philadelphia Phillies have taken LHP Cliff Lee off the market; the Rangers were one of a few teams rumored to be in play, but according to Stark, the Phillies were asking for more than teams wanted to give up in return.

However, one Lee that has already been traded this month may be available - Miami 1B/OF Carlos Lee. The 26-year-old slugger was acquired by the Marlins earlier this month, and has hit .271 with a homer and 12 RBI in his 21 games with the Marlins.

2:15 p.m. Update: Pence trade officially a 3-for-1; Dempster to Yanks now?

The San Francisco Giants officially announced the acquisition of Hunter Pence, and the third player headed to Philly is P Seth Rosin (2-1, 4.31 at High-A San Jose).

Also, rumors are heating up that the Yankees are once again in on Ryan Dempster. CBSSports.com's Jon Heyman reports that the Yankees and Cubs have had one conversation about a deal but that Dempster still prefers the Dodgers, while others including Joel Sherman are reporting that the Cubs have said they're in "heavy discussions" with New York. With two hours to go, it's anyone's guess if that's subterfuge or not, but Jon Lane has more on the situation here.

1:45 p.m. Update: More on Pence

According to CBSSports.com's Jon Heyman, the Hunter Pence to San Fran deal will be a 3-for-1, with OF Nate Schierholtz (.257-5-17 in 77 games) and a pitcher to be determined later also heading to Philly. The Giants are expected to officially announce Pence's acquisition shortly after 2 p.m. ET.

1 p.m. Update: Giants to send one prospect to Philly for Pence

Assuming Hunter Pence passes his physical, CBSSports.com reports that the Giants will send minor league C/1B Tommy Joseph to Philadelphia to complete the earlier deal. Joseph was a second-round pick of the Giants in 2009, and the 21-year-old was hitting .260 with eight homers and 36 RBI at Double-A Richmond.

12:45 p.m. Update: Ryan Dempster a Dodger?

He will be soon according to MLB Network Radio analyst Jim Bowden, who Tweeted that the Cubs and Dodgers are finalizing a deal that would send Dempster to LA. His acquisition would be the third big one of the last 12 hours for the Dodgers, who acquired Brandon League overnight and snagged Shane Victorino roughly an hour ago.

12:30 p.m. Update: Pence to the Giants

In less than an hour, two-thirds of the Phillies outfield has moved west. This time, it's RF Hunter Pence on the move, as the San Francisco Giants have acquired Pence. No word yet on what the Giants sent to Philly to complete the deal.

Pence, 29, is hitting .271/.336/.447 in 440 plate appearances for the Phillies this year, and will join MLB hits leader Melky Cabrera and Angel Pagan (.275-5-35, 17 SB) in a strong Giants outfield. Pence had just joined the Phils last year in a trade deadline deal with Houston, but Philly GM Ruben Amaro Jr. has already begun cleaning house with he and Victorino on the move and more expected throughout the day.

12:00 p.m. Update: Victorino to the Dodgers

The first major domino of the day has fallen, as the Los Angeles Dodgers have acquired OF Shane Victorino from the Phillies for a pair of right-handed pitchers, Josh Lindblom and Ethan Martin.

The 31-year-old “Flyin’ Hawaiian” is a free agent-to-be, and was hitting .261 with nine homers, 40 RBI, and 24 stolen bases in Philly. He has spent the last seven-plus years as the center fielder in the City of Brotherly Love, but will now likely slot in as the Dodgers’ left fielder and leadoff hitter.

Lindblom, 25, was 2-2 with a 3.02 ERA in 48 games (47.2 IP) for the Dodgers this season, while the 23-year-old Martin was a first-round pick of the Dodgers in 2008 and was 8-6 with a 3.52 ERA in 20 starts for Double-A Chattanooga.

9 a.m. Update: Overnight deals

The final 24 hours before the trade deadline were expected to be very active, and they started with a bang with five deals made late Monday night and in the overnight hours Tuesday morning.

The Chicago Cubs and Toronto Blue Jays each made two deals in the overnight hours, with the Cubs kicking things off by sending LHP Paul Maholm, OF Reed Johnson, and cash considerations to the Atlanta Braves in exchange for RHPs Arodys Vizcaino and Jaye Chapman.

Maholm had gone 9-6 with a 3.74 ERA in 21 games (20 starts) in Chicago, and will bolster an Atlanta pitching staff besieged by injuries and ineffectiveness. Johnson, meanwhile, hit .302 in 169 at-bats for the Cubs, and will likely be a key bench bat/part-time starter for Fredi Gonzalez.

Vizcaino had Tommy John surgery in April and will miss the entire season, but the 21-year-old righty made 17 appearances out of the Braves bullpen late last season and may be best remembered as the key prospect sent to Atlanta (along with Melky Cabrera) when the Yankees acquired Javier Vazquez and Boone Logan in December 2009. Chapman, meanwhile, was in his seventh full season in the Braves system, and was 3-6 with a 3.52 ERA and seven saves in 40 appearances for Triple-A Gwinnett.

Later, the Cubs also sent C Geovany Soto, who was hitting just .199 with six home runs, and cash to the Texas Rangers for minor league RHP Jake Brigham, who was 5-5 with a 4.28 ERA in 22 starts at Double-A Frisco.

As for the Jays, they sent a pair of outfielders packing, as Eric Thames was traded to the Mariners for RHP Steve Delabar, and Travis Snider was sent to Pittsburgh in exchange for RHP Brad Lincoln.

Both former Jays had split time between Triple-A and the Majors this year; Snider hit .250 with three homers in 10 games with the Jays and .335-13-56 in 56 games with Las Vegas, while Thames was .243-3-11 in 46 games for Toronto and .330-6-32 in 54 contests with the 51s.

In return for those two, the Jays get Lincoln, a 27-year-old righty who was 4-2 with a 2.73 ERA in 28 games (five starts) in Pittsburgh, and the 29-year-old Delabar, who was 2-1 with a 4.17 ERA in 34 appearances out of the Mariners bullpen.

The fifth deal also involved Seattle, as they sent RHP Brandon League to the Dodgers for OF Leon Landry and RHP Logan Bawcom. League had a 3.63 ERA and nine saves for the Mariners this season, and was an All-Star last year in the midst of a 37-save season. Landry, 22, was hitting .328 with eight homers, 51 RBI, and 20 steals for the High-A Rancho Cucamonga Quakes, while the 23-year-old Bawcom was 404 with a 2.03 ERA in 39 appearances between Rancho Cucamonga and Double-A Chattanooga.