The Otters squandered a two-goal lead and dropped their fourth-straight game. Mercyhurst women's hockey rallied for a home win, and Mercyhurst wrestling won a battle of top-20 programs.
The Erie Otters needed a goal twice in the third period to force a shootout. However, the London Knights had the final edge to skate out of Erie with the win.
The OHL set a new date for the previously postponed Erie Otters game against Saginaw.
The Otters' power play connected three times as part of a four-goal second period to help Erie hand Ottawa just its second loss of the season.
OHL: Mississauga 3, Erie 2 (SO) WHOC: Clarkson 3, Mercyhurst 1
OHL: Mississauga 3, Erie 2 (SO)
WHOC: Clarkson 3, Mercyhurst 1
The Erie Otters added a big power forward Monday as they traded away a former first-round pick.
Lalonde Named to OHL All-Rookie 1st Team