Looking at Ronaldo's career, (born Feb '85) at 21, he scored, 23 in 53 for the rags. It was his first real season of high scoring (12 in 47 the season before) but he had played 95 games for Utd by the start of that season. NINETY FIVE!
He was an established Premier League player by then, who had been eased into Ferguson's system over 3 seasons prior to that one .
Sane's career at City is only just beginning, he's not in our first 11 yet, & he had 9 goals last season, in & out of the team & has 4 in 7 now (how many of those games were starts ?).
He is way ahead of Ronaldo in his limited time here, in terms of end product compared to PL experience.
Look at the technique involved in all 4 of his goals this season. It's as good as anything you could ever see. Imo, he has the same ability striking a ball, that Ronaldo has, just needs to refine it & to get on taking free kicks somehow (not easy in this team) & to be consistent. Sometimes he is a bit flakey & not in the game (Flakey was Ronaldo's middle name at that age & many Utd fans I know, didn't want him at the club). Ronaldo also taught himself to become a serious header of the ball, which imo Sane should follow, he has the physique.
We have a player here, who imo is better than Ronaldo was, at the same age. A decent way better. He's just not established at City yet, which is why I personally didn't want Sanchez in the way.
He clearly doesn't like being left out as he knows he's as good, or better, than any of the players in the team.
We soon have to start playing him more often imo, & if he isn't performimg, take him off, rather than not starting him. We are going to come under a lot of pressure with big clubs trying to tap this guy up & we need to get him hooked on playing for City.