Boston Red Sox vs Seattle Mariners - Thursday 4/22/21 - MLB Picks & Predictions

The MLB season is underway and we have all your betting needs covered. Today our MLB free betting pick is in the Seattle Mariners at Boston Red Sox matchup on Thursday April 22, 2021 from Picks & Parlays experts Chelsa Messinger and Sean Higgs.

Get all Sean's Premium Picks at his handicapping page 7 Days for Just $174.99, or $114.99 for 3 Days. Click here to go right to Landing Page to Purchase.