Much if not all of Buster Posey's 2011 season is in jeopardyafter MRI tests Thursday revealed the Giants catcher has torn ligaments inhis left ankle in addition to a fractured fibula. Posey, who was injured in Wednesday night's 7-6 loss to Floridawhen the Marlins' Scott Cousins blasted him in a home platecollision, will more than likely undergo surgery within the nextweek to repair the ligament damage. But the club wasn't prepared tosay how long it would take before Posey could begin rehabilitation,let alone if he can return to active play this season. "It's to be determined still and he obviously is going to be outfor awhile," said Giants trainer Dave Groeschner. "Ithink once we get all the rest of the information in the next dayor two, we're going to set a plan an