Mariano Rivera Hurts Knee -- Ends His Career?

Mariano Rivera, the Panamanian closer for the Yankees, injured his knee Thursday night at batting practice, reports CBS news. The 12-time All-Star was practicing before the Yankees game against the Kansas City Royals, when his right knee buckled against the wall as he went for a fly ball. He dropped to the ground as fellow player Alex Rodriguez uttered “oh, my God” from across the field.

Rivera was diagnosed with a torn ACL and meniscus after an MRI, taken during the game (where the Yankees’ lost to the Royals 4-3). Many speculate that this injury will not only end his season, but his career as well. The famed pitcher has played 18 years in the major leagues, and many thought he was set to retire soon. And while Rivera stated that he has to “fix” his knee, this may be one setback that will lure him to retirement that much faster.

Tell us: Are you a fan of Rivera's? Do you think that this is the end of his career?