Cromwell - Chunk had a motorbike accident, he was overtaking someone on a motorway/dual carriageway when they decided to overtake themselves and pulled out. They shunted Chunk into the central reservation which he was promptly flung over and before he landed he hit an oncoming car, flew up in the air then landed on his head. He has a seriously fucked left knee and at the time had a fucked up head too but that's now healed leaving him in a wheelchair or hopping along on crutches for short distances.
This operation has given him a false knee meaning he should be able to walk a lot more and hopefully not need his wheelchair any more.
During Chunk's entire time drifting, he's fought pain and resistance in his left knee to smash the fuck out of clutches in a lot of cars to become a very competent drifter

Now he should finally have an easier time of things.
PS - chunk's update was that he walked a short distance and bent his knee to about 50deg, said it was sore but worth it!