‘Challenge’ star Nelson Thomas shares gruesome photos of car accident injuries

Warning: Graphic images ahead.

Nelson Thomas is facing his biggest “Challenge” yet.

The reality star took to Instagram Tuesday to share gruesome photos of the injuries he sustained in a fiery car accident in Austin, Texas, on March 5.

The first picture in the carousel showed Thomas, 34, lying in a hospital bed with his bloody foot elevated. He had an IV in one arm and a bandage wrapped around the other as well as an oxygen tube in his nose.

The other gnarly snaps featured close-up looks at his swollen, stitched-up leg, ankle and forearm.

“Words can’t explain how grateful I am to be alive,” Thomas told his nearly 250,000 followers. “God is truly great and he has you in his hands no matter who you are.”

A close-up of Nelson Thomas' stitched-up, swollen ankle. — Thomas wrote on Instagram that he has “a long road to recovery.”

Nelson Thomas showing his stitched-up, swollen forearm. — He got stitches in his forearm, leg and ankle.

The “Are You the One?” alum added that he is “in high spirits and getting stronger” but has “a long road to recovery.”

Thomas also took a moment to thank Minnesota Vikings player K.J. Osborn, who was “on the scene” of the incident and filmed a video of an Uber driver and two other people rescuing the MTV personality from a burning vehicle.

Thomas noted in his caption that the group “risk[ed] their own lives to save” his.