After his second rehabilitation start against a minor league team Tuesday, Pedro Mart?nez said he was pushing for a return to the Mets after his next start. But before leaving Tradition Field, he said it might take three more starts for him to be ready. Mart?nez retired the first nine batters he faced Tuesday against the Los Angeles Dodgers? Gulf Coast League team. But in the fourth inning, he threw 29 pitches and allowed a three-run homer. After the young Mets spent about 30 minutes hitting in the fourth inning, the rehab pitching coordinator Randy Niemann decided that Mart?nez would not return to the mound. So Mart?nez went to the bullpen and threw 20 more pitches, all fastballs.