The Mariners have been a surprise this season but I am not convinced yet. The Red Sox will send Martin Perez to the mound. In his career against the Mariners, he is 8-5 and has posted a 3.42 ERA. Seattle has not hit lefties well, They are hitting just .185 with a .563 OPS. and a .185 batting average against left-handed starters this season. The Mariners will counter with Yusei Kikuchi. He has had three starts this innings and has thrown 19.0 innings and given up 17 hits with 10 earned runs for a 4.74 ERA. He has given up three home runs with 19 strikeouts. In his last start against Houston, he allowed five runs.

Play on Boston.