MANCHESTER N.H. — The Portland Pirates (16-15-1- 0) scored three times in the third period and got a 37-save shutout from Mike McKenna as they downed the Manchester Monarchs (22-7-1-1), 3-0 at Verizon Wireless Arena on Sunday afternoon.

The victory was the Pirates’ second in their last three games, while the Monarchs saw their five-game American Hockey League winning streak snapped.

After a scoreless first period, Manchester controlled play in the second, outshooting the Pirates, 17-4. McKenna stopped all 17 in the frame to send the contest to the third period scoreless.

Portland opened the scoring 57 seconds into the final frame on the power play. Jordon Southorn one-timed an attempted cross-ice pass by Manchester goalie Patrik Bartosak. Henrik Samuelsson and Jordan Martinook picked up assists on the goal, Southorn’s first AHL goal.

The Pirates added two empty-net goals in the final minute of the game. Philip Samuelsson scored his first goal of the season and first in a Pirates uniform at 19:04. The goal was also a power play and assisted by Corey Trivino. Martinook added another empty-net goal, his seventh tally of the season, assisted by Justin Hodgman and Justin Hache at 19:41.

Portland was 2-for-4 on the power play, while Manchester went 0-for-8.

The Pirates return home to the Cross Insurance Arena for their annual New Year’s Eve celebration on Wednesday at 5:30 p.m. against the Hartford Wolf Pack. There will be a post-game indoor fireworks shows.