An empty net in hockey is when a team removes its goaltender from the ice, leaving its goal unattended. It's a calculated risk. By removing the goalie, a team gains an extra skater, increasing its offensive firepower. But the move also leaves a squad vulnerable on the defensive end.

Washington Capitals star Alex Ovechkin is chasing Wayne Gretzky's all-time goal record. Can he break it this season?

Ovechkin recorded a power-play goal and an even-strength assist in Tuesday's 4-3 win over the Bruins. Ovechkin is four goals away from breaking Wayne Gretzky's all-time record, and he netted his 891st career goal -- and 38th of the season -- with a power-play tally late in the first period.

Alex Ovechkin moved three goals away from breaking Wayne Gretzky’s NHL record after scoring the 892nd of his career in the Washington Capitals’ game at the Carolina Hurricanes on Wednesday night

Alex Ovechkin moved three goals away from breaking Wayne Gretzky's NHL record after scoring the 892nd of his career in the Capitals' loss at Carolina on Wednesday night.

Washington Capitals captain Alex Ovechkin scored his 892nd career goal Wednesday and is now three tally shy of breaking Hall of Famer Wayne Gretzky’s 31-year NHL record.

Alex Ovechkin moved within three goals of breaking Wayne Gretzky’s NHL record after scoring the 892nd of his career Wednesday night.