Robin wasn't muscle, like Much. He wasn't as compact, probably far too thin and lithe, but even he had brought Gisborne to his knees when saving Stutely. The difference now is Robin didn't have his bow and arrow, here he was one on one with just his hands as his weapon.
Leila looked for three glass and a bottle of whiskey. The three of them would need a shot or two by the time this was over, and she quite honestly did not expect it to take long before Robin wore himself out.
Robin felt that creak in his back as it hit the bar and he shoved again, this time kicking him while trying to pry himself out of his green hoodie and out of Much's grip so he could make a swing for his face.