Pedro Martinez was in a playful mood yesterday, showing no signs of uneasiness heading into today?s scheduled start against the Reds in Cincinnati. But it?s anything but another game for the three-time Cy Young Award winner. Eleven months after having rotator cuff surgery on his right shoulder, Martinez is back, ready to assume his role as a key contributor if not the ace of the Mets rotation. ?I don?t really feel any big emotion about this except that I?m so happy ... I could pitch one more game in the big leagues,? Martinez said. Today won?t feel like a complete return for Martinez, who will be limited to 75 pitches - and no more than 35 in a particular inning - but it?s a major league start nonetheless. Willie Randolph said the ?feel of the game? will determine how quickly he?ll enforce Martinez?s pitch count.