New York Yankees third baseman Alex Rodriguez (13) grounds out...

New York Yankees third baseman Alex Rodriguez (13) grounds out to third in the bottom of the second inning. (Aug. 20, 2010) Credit: Christopher Pasatieri

Alex Rodriguez on Friday confirmed that he has split with longtime agent Scott Boras.

"I'm not going to get into any details, that's for sure," A-Rod said outside the Yankees' clubhouse. "Here's what I will tell you: Scott and I had a good run and nothing drastic happened. It's just at this point in my career, my goal is to finish as a New York Yankee and be a world champion again. And some of the things I needed 20 years ago, I really don't need now."

Rodriguez doesn't need an agent, given that his 10-year, $275-million contract with the Yankees runs until 2017. Boras had been Rodriguez's agent since A-Rod was drafted first overall by Seattle in 1993.

Rodriguez reportedly was unhappy with Boras after the agent opted out of his original $252-million contract during the fourth and final game of the 2007 World Series. Rodriguez ultimately reached out to the Yankees through Goldman Sachs executives before re-signing.

Rodriguez spoke Friday after going through a workout during batting practice to test his strained left calf. Manager Joe Girardi hopes Rodriguez will return Sunday from the disabled list on the first day he is eligible, but A-Rod was more cautious.

"I don't want to over-promise and under-deliver," he said. "I'd much rather go the other way on that and take it one day at a time. Sunday's a possibility, no question."

Saturday will be a big day for the Yankees: Rodriguez will bat against Andy Pettitte, recovering from a strained left groin, in a simulated game. It will be a key test for two important Yankees.

The Yankees are 20-3 without A-Rod in the lineup this season, including 10-3 since he reinjured his calf.

Extra bases

Derek Jeter did not start against Brandon Morrow. Girardi took great pains to say it was not because of any great pains; Jeter is not injured and was just getting the day off. It probably didn't hurt, though, that he is 3-for-16 with seven strikeouts against Morrow . . . Nick Swisher (knee), who left Wednesday's game after one inning, did not play. "I was available to pinch hit," he said. "But it's nice to get the full day off." . . . Curtis Granderson is 19-for-60 (.317) with nine walks, six home runs and 13 RBIs in his last 18 games . . . Beginning July 1, in 55 games, Mark Teixeira is 66-for-204 (.324) with 31 walks, 17 homers, 51 RBIs and 48 runs scored. He leads the majors with 100 runs and has driven in 99 after an RBI double Friday, which looked like a three-run homer until the wind knocked it down.

More Yankees headlines