Otis, are you mad?! I think where Biamou makes a mistake is looking for where the defender is when he's coming in to the box, this gives the Cheltenham guy a chance to get back and put him off, he should just take the touch and hit it. Once the defender catches up with him there are a few fouls though, he has his right arm wrapped around Biamou's armpit and then his left on the neck.
Taking that frame by frame I can see 4 fouls
1. where he pulls him back outside the box
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2. where he is off the ground pushing his weight down on Biamou with no control
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3. Here you can see his elbow on the neck and he has hold of Biamou's wrist
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4. He uses his shoulder in Biamou's back
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It's only after the ball has gone that he lefts go of Biamou and then it looks like he falls into him. 4 clear fouls and an absolute stonewall penalty. The official on the far side should have picked up on him being held and flagged but they are all scared to make any decisions in this league and defer to the ref. I think it's a miracle Max managed to stay up as long as he did tbh