Jon Heyman of CBSSports.com hears that the "complication" involving Mariano Rivera (knee) is "minor" and it's "something that he wants to reveal." Rivera's agent mentioned that his client ran into "complications" during his doctor visit on Monday, but he declined to go into any specifics. Yankees general manager Brian Cashman later told reporters that it won't have an impact on his ability to come back from a torn ACL in his right knee. Sounds like much ado about nothing.

Buster Olney of ESPN.com reports that the reported "complications" during Mariano Rivera's doctor visit will have no bearing on his ability to come back from a torn ACL in his right knee. Rivera's agent, Fernando Cuza, told George A. King III of the New York Post that his client "ran into complications" during his doctor visit on Monday, but declined to go into any specifics. It's possible that the surgery is just being delayed, but the Yankees have yet to provide an official update. Regardless, Rivera is expected to miss the rest of the season and intends to make a comeback in 2013.

Mariano Rivera's agent, Fernando Cuza, told George A. King III of the New York Post that his client "ran into complications" during his doctor visit on Monday. "We ran into complications," said Cuza. "I am referring to Dr. Ahmad and [Yankees general manager] Brian Cashman for further information." Rivera, who was diagnosed with a torn ACL in his right knee last week, was expected to meet with Yankees physician Dr. Chris Ahmad, knee specialist Dr. Russell Warren, the Giants' physician, and Mets' team doctor David Altchek. The all-time saves leader has already declared that the injury will not end his career.

Yankees placed RHP Mariano Rivera on the 15-day disabled list with a torn right meniscus and ACL. The "15-day" designation is a pure formality, as Rivera has already been ruled out for the remainder of the season. He will likely be transferred to the 60-day disabled list the next time the Yankees need to clear a spot on their 40-man roster. Six-months shy of his 43rd birthday, Rivera has vowed to return in 2013. David Robertson is the heavy favorite to close in Rivera's absence, but manager Joe Girardi has refused to rule out giving save opportunities to Rafael Soriano.

Bob Klapisch of the Bergen Record reports that the Yankees are still trying to determine whether Mariano Rivera has a torn meniscus. The Yankees weren't told by Kansas City doctors about a torn meniscus, but Rivera offered it to reporters after Thursday's game. Either way, the torn ACL is the major injury, and one that is expected to be season-ending. David Robertson is expected to replace Mo in the ninth inning, though Rafael Soriano could also be considered.

Yankees manager Joe Girardi announced following Thursday's game that Mariano Rivera was diagnosed with a torn ACL in his right knee. Absolutely crushing news. Rivera is scheduled to head back to New York to meet with Yankees' doctors, but his season is almost certainly over and there's at least a chance that he has thrown his final pitch. It's terrible news for the Yankees, as there will never be another closer like Rivera, but David Robertson and Rafael Soriano are capable replacements. We would give the edge to Robertson, but both should be stashed away in most fantasy leagues.

Mariano Rivera was diagnosed with a "twisted right knee" after being examined by a Royals' associate physician and Yankees trainers. That's an extremely preliminary diagnosis, so we should know something more definitive after he undergoes an MRI during the game. Rivera was carted off the field after injuring the right knee while shagging fly balls during batting practice Thursday. Stay tuned.

Mariano Rivera was carted off the field Thursday after suffering an apparent injury to his right knee during batting practice.

Mariano Rivera notched his fifth save of the season with a scoreless ninth inning in Monday's win over the Orioles. Mo blew his first save chance of the season, but he's converted five straight while allowing just two baserunners and no runs since then. The future Hall of Famer will be an elite fantasy closer again this season.

Mariano Rivera converted his third consecutive save opportunity as the Yankees defeated the Twins on Thursday. After a shaky outing on Opening Day, Rivera has now been lights out in every appearance since. He needed just seven pitches to set down the side in order in this one and remains one of the truly elite closers in the game.