{"playerId":194,"percentChange":-5.4,"averageDraftPosition":69.2,"percentOwned":22.9,"playerRaterSEASON":1.2,"mostRecentNews":{"news":"A date for Rivera's ACL surgery has still not been determined, the Newark Star-Ledger reports.","spin":"Rivera will undergo the procedure at some point, but doctors are waiting for the blood clot in his leg to clear and are hoping he can regain some flexibility in the joint before setting a date. Holding off on the surgery won't make the injury any worse, but it could push back a potential return to action whenever the recovery process is complete.","date":"Tue May 22"},"fullName":"Mariano Rivera","seasonOutlook":{"outlook":"Mariano Rivera is ageless. He's a one-pitch pitcher and he's 42 years old, a time when most all-time greats have already retired, and that one pitch looks every bit as sharp at his advanced age as it did when he was 27. If there's any difference between the Mariano of today and the one in his prime, it's the way the Yankees use him; he's now probably capped at 60-inning regular seasons, partly because the team wants to keep him fresh for the playoffs and partly because he's not quite as physically equipped to pitch on consecutive days or for multiple innings as he once was. Opposing hitters have .200/.234/.288 numbers against Rivera's cutter the past three seasons combined, and he has thrown the pitch 82.0 percent of the time. He also has the most job security of any closer in baseball. Care to doubt this \"old man\"?","seasonId":2012,"date":"Fri Feb 10"},"playerRater30DAY":-0.3,"positionRank":49}