They’ve all got huge improvement to make compared to previous wide forwards. Even with Doku’s recent surge in form, he’s miles away from being at Sané and Sterling levels at a similar age.
When Sterling was 23, he scored 25 goals and got 16 assists in 4,097 minutes (g/a every 99 minutes).
When Sané was 22, he scored 16 goals and got 18 assists in 2,946 minutes (g/a every 79 minutes).
…and they both happened in the same season, plus Mahrez (much older at 28 though) got 12 goals and 12 assists in that season n’all making it 99 goals and assists between the three of them that season.
But the current lads are still young and have got years ahead of them to improve. Doku is the older of the three (Doku 23, Bobb 22, Savinho 21) and has made a step up in recent games (although still needs to be more clinical in the box with that chance in the second half at Arsenal, could have put the game to bed… but Sterling did miss his fair share of sitters n’all).
Hopefully there’s a good step up with all of them when they get in the swing of it this season… Savinho and Bobb haven’t really got going yet after injuries.