"Banner also downplayed the question about Mervis’ defense and how the 6-foot-4, 225-pound slugger would adapt at the position where Rizzo won four Gold Gloves and helped anchor some great defensive teams at Wrigley Field: “He’s more athletic than people think. He knows his way around the bag at first base. He’s a nice, big target, and he actually grades out really well defensively. No concerns there.”
https://theathletic.com/3913770/2022/11/20/cubs-matt-mervis-free-agency/