Mo would've retired had he pitched in ALDS
Mariano Rivera - R - New York Yankees
Feb. 17, 2013 - 2:10 PM ET
Mariano Rivera told ESPN's Buster Olney that there's "a good chance" he would have retired had he been able to return last season to pitch in the playoffs.
It's an indication that 2013 will likely be his last season, though most were already assuming that it probably was. Mo will make an official announcement before the end of spring training about whether the upcoming campaign will be his final one.
Source: Buster Olney on Twitter