WNBA's Diamond DeShields Trolled By Teammate During Interview, 'Is Your Rash Okay?'

WNBA star Diamond DeShields took an immediate L courtesy of her teammate after getting a huge win Wednesday ... and the video of it is hilarious.

After the Chicago Sky beat the Phoenix Mercury, 101-87, DeShields earned the postgame interview attention as the star of the day ... and then Gabby Williams struck.

The reporter asks how big of a win it was ... and while Diamond's giving her answer -- Williams yells, "Hey, is your rash okay?!"

Diamond -- clearly embarrassed -- tries to laugh it off, turns to the camera and says, "Jokes! Jokes!"

We know one person who's certainly hoping Gabby was kidding -- Diamond's BF, Saints star Alvin Kamara!!

Seems like it's all fake though ... so no rash lotion necessary.