The Sixers made 30 of 39 shots (77 percent) in the first half and raced to a 24-point lead that nearly evaporated after a wild Raptors comeback.
Canucks head coach Rick Tocchet said Kuzmenko’s decision was made in consultation with his family.
Sabres rookie goaltender Devon Levi made 32 saves in his NHL debut to help Buffalo pull five points behind Pittsburgh for the second wild card spot in the Eastern Conference.
The Los Angeles third baseman is in the Angels' starting lineup Saturday.