I've just looked again, maybe I wasn't clear. Firstly, I said I don't think it was enough for a pen but he didn't dive.
Secondly, there was contact from two players to my eyes.
There is contact with the hip from the second player and this is when Sterling is already on the way down.
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Before that though, Sterling shifted his weight onto his left and then onto his right, to weave his way through. As he knocked the ball on and shifted his momentum onto his right watch number 5 for Denmark, notice the moment he puts his leg out and look where the ball is.
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Above you can see, Sterling has knocked the ball on, he is not off balance/on the way down, the ball is passed the defenders foot and his leg is outstretched in front of Sterling.
Is that an attempt to play the ball or is it an attempt to stop Sterling who is rapid from attempting to run onto his knock on? You said it was non recoverable but if he wasn't knocked off balance I wouldn't bet against Sterling getting onto that even if it was a heavy touch and maybe the defender thought the same.
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A couple of fames on and Sterling is still not on his way down, but he's got nowhere to go, being sandwiched from both sides neither defender playing for the ball. He's going to have to either run into the defenders outstretched leg or try and avoid it, which he does try to do IMO.
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He's tried to avoid the contact and but it's still been made which is what puts him off balance and then the other defender makes contact with the hip but he was already on the way down. That's what I thought people were referring to(as already on the way down) because it's the only one that makes sense.
It is a soft one because there wasn't much contact but it wasn't a dive, to me Sterling could have took more advantage of the outstretched leg if he wanted to but he tried to get past it.