Mayer has filled in for Bregman but has struggled with a .214 batting average and .665 OPS, highlighting the difference in their performances.

Mayer has shown promise at third base but will need to transition to second when Bregman returns. His development is crucial for the future of the Red Sox's infield.

Marcelo Mayer has struggled since his call-up, hitting just .208 with limited power. Despite a strong minor league background, his current performance suggests he's not living up to expectations, making him a candidate for dropping in non-keeper leagues.

Marcelo Mayer's commitment to versatility amid competition is commendable. His growth as a player this season is crucial for the Red Sox's future.

Marcelo Mayer, a top prospect for the Red Sox, is gaining traction in fantasy leagues. He has shown potential with recent performances and could significantly contribute in favorable matchups against right-handed pitchers in the coming weeks.