Forget the hair pulling issue, that was VAR and modern day refereeing, at it's worst.
The question surely is what was Carrick thinking in even expecting Martinez to match up against someone the size of DCL; especially on his first game back after months?
It was a constant 'big v little' tussle that Martinez was nearly always going to come off worst.... unless he played 'on the edge' with the rules. Which he did, leaning into his opponent just before the ball arrived, the little push sidewards occasionally, and he stood on DCL's foot at least once or twice to prevent him jumping. Whether the ref had seen this and was giving him some leeway, or whether DCL lost his rag and squealed when his hair got pulled, who knows.... VAR intervened and that was that.
Surely Heaven should have been alongside Yoro with Martinez taking Ugarte's role?