The surprising Seattle Mariners, who share the best record in the American League with the Boston Red Sox at 11-6, could get a significant boost when they wrap up a two-game series with the visiting Los Angeles Dodgers on Tuesday afternoon.

Kyle Lewis, the reigning American League Rookie of the Year who has yet to play this season because of a bone bruise on his right knee, is expected to be activated off the 10-day injured list and be in the starting lineup, manager Scott Servais said.

Lewis, who sustained the injury running into an outfield wall late in spring training, played five innings of an intrasquad game at the team's alternative training site Monday morning and appears set for his season debut.