Giants catcher Buster Posey was knocked out of Wednesday night’s game against Florida following a collision at home plate with Scott Cousins in the 12th inning, according to an ESPN.com report. Posey was trying to field Nate Schierholtz’s throw home on a fly ball by the Marlins’ Emilio Bonifacio when he was injured. Giants medical staff rushed out to Posey, who remained down for several moments before being helped off the field. Posey appeared to injure his left foot though there was no immediate announcement by the team.