I think this Sane not signing a new contract is all about a lack of playing time........he is throwing his toys out of the pram. He needs to look at what Bernardo did after his first season here.
Some of Sane's performances/cameos were truly awful this season..even in games where we were winning comfortably he came on and was the worst player in the 11.
ON his day he is world class and he has got everything to be the best (more so that Sterling and Jesus imho) but the one thing he lacks (and those two have) is the correct attitude and the ability to dig in when its not going well for you. When this happens his head drops and then Pep gives him a bollocking - and he doesn't like it
Leroy needs to man up a bit. Stop letting his mother (agent) dictate what you are doing and focus becoming a much more consistent player.
Leroy literally has the world at his feet and with the right application he could go tot he very top (Mbappe levels) but he needs to accept that tough love at times from Pep ....again all he needs to do is look across the locker room at sterling, Bernardo and Jesus to see where that will get him