Jenrry Mejia's 37th major league appearance, and fifth major league start, resulted in his first major league win. Mejia did require 51 pitches to navigate the opening two innings and ultimately tossed 96 pitches. But he kept the Pittsburgh Pirates off the scoreboard in his five innings en route to a 6-2 victory Monday night at Citi Field.

"The first time, in 2010, that's when I was nervous," said Mejia, who had Monday's scorecard in his locker as a souvenir. "I have one full year here. I don't have any reason to be nervous."

Said Terry Collins: "The stuff is above the charts -- 96, 97 mph fastball, nice little breaking ball. We'd like to get a third pitch in there, which I think he'll learn. You can't keep having eight-, nine- and 10-pitch at-bats, because they add up fast."

Mejia had allowed five runs on six hits and five walks in three innings at Milwaukee on Sept. 15, in his previous start.

"I felt a lot better tonight," Mejia said. "My mechanics felt really good tonight. I tried to throw every pitch down in the zone. I used my two-seamer (sinker)."