The incident occurred early in the first period of Florida's 4-1 loss. Winchester was not penalized for the hit and Kelly was able to return to the game.
Here is the play, as well as Brendan Shanahan's explanation.
As a result of the suspension he will lose $9,230.76 in salary.
In 16 games this season Winchester has scored four goals -- including Florida's only goal on Thursday -- and recorded three assists in 16 games.
He will be eligible return to the lineup on Nov. 15 against the Minnesota Wild.