Marrero is a projectable role player at the major league level, with plus defensive instincts and ability that pair with below-average hitting ability and below average game power. A former first-round pick of the Red Sox (#24 overall) out of Arizona State in 2012, Marrero has been up-and-down with Boston on several occasions since 2015, and in his last stint he played a serviceable third base for 38 starts while hitting a pedestrian .212 with three home runs and 23 RBI’s.

Marrero is a streaky hitter who has a compact, line-drive oriented approach and who has quick hands and wrists at the plate. His weakness is staying inside the ball and the swing can appear stiff at times. He’ll cut it off on occasion, and he does strike out a lot (31% in Boston this season, 29% at Pawtucket). There is some loft and leverage in the swing, but it is not over-the-fence power, and the below-average pop he can show at times is mostly to the pull side.

He shows plus athleticism on the defensive side of the ball, with good agility and body control, ad with sure hands and average fielding actions. He also shows good defensive instincts and knows how to play hitters, getting good reds off the bat, and his above-average range is helped by his footwork and first-step quickness. He profiles as a defense-first, light-hitting Role 40 utility player with enough ability to play the middle of the diamond at an average level.