Mendy was great before he came and great before his injury after his injury he stopped getting forward but and looked slow but some of it could have been tactical because after a few weeks he was back to near his level he has made a few mistakes since then but he has been a basically back to his level in terms of pace crossing etc
Your talking about him coming good as if he is an 18 year old or a player coming to a new league or player who has not performed he has performed and is now performing again though not full at his level and is no kid