BOSTON — St. Lawrence University goaltender Alex Petizian did his part Saturday night — more, in fact — but the Saints still ended their weekend road trip with back-to-back losses.

Harvard sophomore forward Matt McCollem knocked in a power-play goal at 9 minutes, 44 seconds of the second period, and the Crimson earned a 1-0 men's ECAC Hockey victory over the Saints at Bright Hockey Center.

Petizian turned away 35 shots, but the Saints (4-4-1, 1-2-1 ECAC Hockey) were shut out for the first time this season. They outshot the Crimson (4-2) in the final period, but couldn't muster the necessary tally. SLU had won four in a row, but is now winless in three straight games.

"We played two pretty good games this weekend and have nothing to show for it," SLU coach Joe Marsh said. "You can't ask for any more from a goaltender than what Alex gave us tonight. We had our chances, but their goaltender came up with some big saves as well."

The Saints' previous three games had all gone to overtime, and if ever they needed a little extra time, it was Saturday, when their offense came alive in the final period by outshooting Harvard 10-6. But goalie Matt Hoyle was just as strong, and he even denied a three-on-one rush midway through the third.

SLU appeared to take a 1-0 during a second-period power play, but Mike McKenzie's goal was negated because the whistle had blown before the puck crossed the goal line.

The Crimson took advantage of the break just minutes later on a man-up chance of its own, as Alex Killorn and Steve Rolecek were each credited with an assist when McCollem picked up a rebound and scored.

"We shot ourselves in the foot a couple times with ill-timed penalties," Marsh said. "But it was a game we definitely could have won."

The Saints' inability to capitalize on the Crimson's mistakes proved to be more costly, though, as they finished 0-for-7 on power-play chances. SLU, which entered the game 9-for-47 on power plays, enjoyed a five-on-three edge that bridged the end of the second period and beginning of the third, but came away with nothing.

St. Lawrence returns to Canton for games against Princeton and Quinnipiac on Friday and Saturday, respectively.

"It's never easy on the road in the ECAC, and that message was hammered home pretty well this weekend," Marsh said.

nNOTES:The Saints had scored at least two goals in every game before Saturday, and Harvard was just the third opponent this season to limit SLU to less than 30 shots on goal. The Saints finished with 29. ... Petizian tied a season high for saves. ... This was Harvard's third consecutive win.