Clinical in Japan, Switzerland, Russia, and CL group stages, mostly against shit teams + the joke of a CL team that is ManCity. He's never played in a top league against top competition, week in, week out.
He's better than he's showing at Roma, because he looks fucking clueless on the pitch, and Roma players provide him with absolutely no service, but he's nowhere near as good as his stats in those 2nd rate leagues suggest.