If that was Salah, as soon as the guy touched his shoulder his head would jerk backwards & then the contact on the leg would be made obvious as he collapsed on top of the defender.
Aguero always thinks of trying to score, never dives & never gets anything, because he doesn't think of cheating as a first resort, so he will run, off balance, rather than go down under a challenge.
Just as be did in the last seconds of tbe season v QPR.
There would have been no Salaaaaaaaaaaaahhhbhh moment if you'd swapped him for Aguero because he'd be on his fucking arse waving his arms about.