McTavish scored a power-play goal and added an assist in Sunday's 4-1 win over the Islanders.
Goalie Marcus Hogberg, activated off injured reserve and making his first start in six weeks, was tested early and often as Isles struggled a night after beating Sharks.
The Islanders’ two-game winning streak comes to an end on Sunday night in the second of a three-game California road trip
Sam Colangelo scored twice, Lukas Dostal stopped 31 shots and the Anaheim Ducks beat the Islanders 4-1 on Sunday night. New York had won four of its previous five.
The Ducks, who trail Vancouver by eight points in the wild-card standings, look to shake a tough loss to the Blues
New York Islanders (29-26-7, in the Metropolitan Division) vs. Anaheim Ducks (27-28-7, in the Pacific Division) Anaheim, California; Sunday, 9 p.m. EDT BETMGM SPORTSBOOK LINE: Islanders -119, Ducks -101;