Shang-Chi is trying to recover his half-sister who is a mutant (think Green Lantern constructs except using a flute) while Wolverine is trying to convince her to go to Krakoa. They come to blows. Neither are going all out, but they aren't taking it really easy either. In the end, Shang-Chi clearly wins on points after he almost defeats Wolverine by accident - kicking Logan harder than he meant to and has to save Wolverine from falling off a cliff.
... he temporarily paraylses one of the Thing's arms with a nerve strike. It was a suprise blow, as the Thing's attention was on someone else at the the time (a bit like when Mantis KOed Thor). Nevertheless, it's a good showing for a character with no superhuman powers, and a marked improvement over his previous tussle with the Thing back in Marvel Two-in-One