YES Network.com

The New York Yankees will hold a 10 a.m. press conference on Saturday morning at George M. Steinbrenner Field at which closer Mariano Rivera will announce his retirement from baseball following the 2013 season. Rivera told reporters at the start of Spring Training that his mind was made up, but it wasn't yet the time to reveal his plans. Rivera did add that he'd reveal them before the start of the regular season, and that time has apparently come.

I can report #Yankees have 10 am press conf sked Sat at Steinbrenner Field at which Rivera is set to announce retirement after '13 season

— Joel Sherman (@Joelsherman1) March 7, 2013

Rivera is entering his 19th season, all with the Yankees. He debuted as a starting pitcher in 1995 before a breakthrough season as a setup man in 1996. After assuming the closer's role full time in 1997, Rivera established himself as the game's best reliever, leading the Majors in saves three times. His 608 career saves are tops on baseball's all-time list.

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