United Kingdom, Nov. 26 -- Guy Fieri is using a wheelchair and crutches after his leg muscle "exploded".

The Diners, Drive-Ins and Dives host is struggling with his mobility after accidentally slipping on a set of steps, "tearing" his quadricep "in half" in the process, which has required him to undergo surgery.

Guy told Fox News Digital: "[I] slipped down a set of steps and one foot went forward and the other foot got caught on the threshold.

"So, you know, it extended me out. I looked like I was probably doing the splits, but when my right leg compressed into itself, the giveaway point, and the doctor said he's never seen - you know, in 20 years - he hasn't seen a tear in the biggest, thickest part of your quad in half. Yeah, it suck...