Pedro Martinez is out for the postseason after an exam Thursday showed the Mets ace has a torn tendon in his left calf muscle. The Mets, who won their first NL East title since 1988 with Martinez battling injuries most of the season, won't have the three-time Cy Young Award winner at all in the playoffs. Martinez returned to New York after getting knocked around badly in his final start of the regular season Wednesday night, a 13-1 loss to Atlanta. An MRI showed a tear in the left calf -- different from the right calf injury that recently put him on the disabled list for a month and was thought to be his major concern.