What do the different indicators/badges under your players feet when fielding? For instance, my cap has 99 fielding and a bronze indicator will still show up and he’ll force an error.
The shield represents the fielding attribute. Doesn't accurately apply to ballplayers in secondary positions though as the secondary position thing seems to be broken still.
Generally I think its 85+ is diamond 80 for gold 75 for silver? Something like that.