The Mariners and Red Sox will face off in a series that could have serious American League Wild Card implications.

Boston Red Sox (37-36, fourth in the AL East) vs. Seattle Mariners (36-34, second in the AL West) Seattle; Monday, 9:40 p.m. EDT PITCHING PROBABLES: Red Sox: Lucas Giolito (2-1, 5.45 ERA, 1.54 WHIP, 31 strikeouts);

Logan Gilbert, out since late April, will be activated from the injured list and start for the Mariners on Monday against the Boston Red Sox.