Kessel backed away from Scott while twice swinging his stick at the Sabres' tough guy before some of his teammates jumped in.
Clarkson is subject to an automatic 10-game suspension in the regular season.
Froese's 2 goals lead Blackhawks past Wings, 4-3
Tomas Tatar scored twice for Red Wings (2-3-0), Jonathan Ericsson added a goal and Gustav Nyquist had three assists. Jimmy Howard stopped 16 of 20 shots before being replaced by Jared Coreau early in the third period. Coreau made four saves.
Tatar opened the scoring 7:29 into the game and Froese answered 1:49 later. Nordstrom's tally came with 2:54 left in the first.
Ross and Froese scored less than a minute apart early in the third.
Tatar got his second goal, on the power play, with 7:02 left and Ericsson's goal came with 41 seconds to go.
Rinne backstops Predators to 2-0 win over Isles
Rinne played two periods in his first game since left hip surgery in early May.
Injuries limited Bourque to 34 games for the Predators last season.
Watson, a first-round selection of the Predators in 2010, saw his first NHL action last season and scored one goal for Nashville.
Carter Hutton, signed in the offseason to be Rinne's backup, played the final period, making 12 saves.
Anders Nilsson stopped 23 shots for the Islanders.
Varlamov solid in Avs' 2-1 win over Ducks
ANAHEIM, Calif. -- Semyon Varlamov made 37 saves and Brad Malone got the go-ahead goal with 11:33 left in the third, leading the Colorado Avalanche to a 2-1 preseason victory over the Anaheim Ducks on Sunday night.
Guillaume Desbiens opened the scoring for Colorado at 12:20 of the second period with a 45-foot wrist shot past Jonas Hiller's glove, following a turnover by forward Jakob Silfverberg in the Anaheim zone. Silfverberg left the game with 5:02 remaining because of an undisclosed injury.
Hiller finished with 23 saves.
Varlamov had a league-worst 21 losses and a 3.02 goals-against average for Colorado during the lockout shortened 48-game schedule in 2012-13.
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