Yakemchuk’s power-play winner lifts Senators over Flyers

OTTAWA — Carter Yakemchuk’s first regular-season goal was the game-winner in the Ottawa Senators’ 2-1 victory over the Philadelphia Flyers on Thursday night. Yakemchuk broke the tie with a power-play goal with seven minutes remaining in regulation. He made his NHL debut in the playoffs last spring. The Flyers (0-3-2) are still looking for their first win of the season. Philadelphia’s Matvei Michkov was the lone Flyer to beat Linus Ullmark, who made 29 saves. Joseph Woll stopped 24 shots for Philadelphia. Thursday’s game marked the start of a busy stretch for the Flyers with three games in four nights.…