They could sell him perhaps easier than players already on top clubs also because he should be an almost automatic starter for them, especially if Pogba is sold. He is more of an unknown to most fans and playing for them with their fan base size and reputation may get him more attention globally than being a backup/rotation player for us or other clubs with more competition. It's a step up in that regard and he can see how things go after a season or two. If no CL after next season maybe he leaves, if he proves himself. What other clubs will be in for him and don't have other big targets in mind that will help him gain more of a reputation? Playing in the PL is great for players' reputations as its the most followed league, and is highly competitive. Even if it's for Utd. PSG? That might not be so ideal due to the league situation. Actually, I could see Liverpool interested as they lack a player like him in central midfield since Coutinho left. Keita is more creative than the rest but he is still more of an attack oriented pit bull type of 8 than no. 10/scoring midfielder. Those two could be their midfield pairing for the next 5-6 years as they are 1 year apart in age difference. I hope it doesn't happen for our sake, but it's a worry.