Mike Carp and Casper Wells hit back-to-back, inning homers to push the Seattle Mariners past the Toronto Blue Jays, 5, in the opener of a three-game series.

Carp finished with two home runs and extended his major league-leading hit streak to 15 games. Wells has homered in three straight games.

Trayvon Robinson went 3-for-4 with two doubles, an RBI and a run scored for the Mariners, who won their third straight.

Tom Wilhelmsen (1-0) worked a scoreless eighth to earn his first major league victory.

Brandon League allowed a two-out single in the ninth, but retired Jose Bautista on a groundout to record his 30th save of the season.

Jon Rauch (5-4) suffered the loss after surrendering Wells' home run.

Eric Thames and Adam Lind both had two-run homers for the Blue Jays.