One shirt for each team: Patriots, Celtics, Bruins and Red Sox.
Plus a New England Patriots NFL forward hat
Drag and drop all files in T-shirts to here: mods>x64v.rpf>models>cdimages>streamedpeds_players.rpf>player one
Drag and drop hat file to here:
mods\x64v.rpf\models\cdimages\streamedpedprops.rpf\player_one_p
Credits:
SportsClothes