As the title hints at, the person I play tennis with has really bad BO. It's tolerable before they play sport but after sport its just terrible. I dont have a problem with BO because hey its sport but the real problem is that they keep asking for rides after each playing session and my car just stinks for the rest of the week until I spray odor remover or fabric freshener a few times.

Is it weird if I ask the partner to bring deodorant or a towel to wipe the sweat away before stepping into the vehicle? or what would be the best way to approach this? I'm just an acquaintance of this guy. Our entire relationship is playing tennis once or twice a week.