NHL commissioner Gary Bettman believes that Washington Capitals forward Tom Wilson needs "an appropriate wake-up call" to re-evaluate his reckless play, which is one reason he upheld Wilson's 20-game suspension in a ruling on Thursday.

Senators defenseman Mark Borowiecki has been suspended for one game without pay by the NHL for elbowing Bruins defenseman Urho Vaakanainen on Tuesday night.

The NHL announced the suspension Wednesday.

The NHL Players' Association has filed an appeal on behalf of Tom Wilson after the Capitals forward was suspended 20 games for an illegal check to the head.