Peterson , the Hockey East goalie of the month for January , had his moments in the first four periods of the series .
Goalie had to be much better late Saturday with 13 saves in the second and 17 in the third .
Peterson , the Hockey East goalie of the month for January , had his moments in the first four periods of the series , but he had to be much better late Saturday with 13 saves in the second and 17 in the third .