GLENDALE, Ariz. — Logan Couture scored his team-best 11th goal to help the Sharks defeat the Arizona Coyotes 3-1 on Wednesday night. Joe Thornton also scored and Joel Ward added an empty-net goal with 47.8 to play for the Sharks, who snapped a three-game losing streak. Brendan Perlini scored with 7:37 to go, ruining Sharks goalie Martin Jones’ bid for his second shutout of the season.