I'm not going to diss Pepe for that. Y'all know I think he's past his best but every other time he runs after a striker in that position nothing happens. It was one of the best goals you'll ever see.
I'm not even 100% convinced Aguero meant to score ... his eyes didn't look up so either it was a 'hit an hope' or, which is what I think, he was trying to cross it for Dzeko who would be expected to be in that position. We'll never know.