Red Sox outfielder Tyler O'Neill, who missed Sunday's doubleheader due to back tightness, will return as the designated hitter on Monday against the Blue Jays. O'Neill has had a strong season with 31 home runs and is a candidate for the AL Comeback Player of the Year, having bounced back from injury-riddled past seasons. Meanwhile, Tigers' ace Tarik Skubal is in contention for the AL Cy Young Award, leading the league in ERA and strikeouts, and is crucial to Detroit's playoff push. Skubal's performance is pivotal as the Tigers are just 1.5 games behind for the final wildcard spot.