4584...End Of An Era V.2

Mariano Rivera of the New York Yankees, the finest closer in the history of the game, may be toast.

Mr. Rivera was shagging balls in the outfield in Kansas City and fell down, went boom and tore his ACL.
This is bad.

In fact it is the end of two eras if he is done.  Era number one is the Rivera era.  Era number two is he is the last MLB player to wear Jackie Robinson's 42.

WFDS