Josh Manson's throat-slashing gesture on Toronto's Nazem Kadri has proved costly.

The Anaheim Ducks defenceman was fined $2,486.56 US on Friday — the maximum allowable under the NHL's Collective Bargaining Agreement — for his gesture aimed at Kadri.

The incident happened at 17:17 of the third period in the Maple Leafs' 6-5 victory at the Air Canada Centre on Thrusday night.

Kadri was penalized for delivering a hit from behind on Manson, and Manson made the gesture while Kadri was being escorted to the penalty box. Manson was given a game misconduct for his action.

Last month, Kadri himself was fined the maximum amount for giving a throat-slash gesture toward Calgary Flames defenceman Mark Giordano.