Pedro Martinez will make his fourth rehab start Monday night, pitching for Single-A St. Lucie at Palm Beach. Though Martinez has pitched at Single-A in his three rehab outings so far, the Mets essentially view the specific minor league level as unimportant. Omar Minaya said yesterday Martinez doesn't have to pitch above Single-A before returning to the Mets. Martinez pitched five innings for St. Lucie this past Monday, allowing no earned runs on two hits. Minaya said Martinez's progress is at play-it-by-ear status, though the odds are he'll have a fifth rehab outing as he recovers from rotator cuff surgery.