Nothing against Sissoko, he's a decent player and probably could do a job for us but if we're seriously looking at him we have to admit we aren't looking to challenge for the title this year. Using the argument "he's better than Fernando" isn't enough. We need a world class midfielder not somebody who's arguably slightly better than our current weakest midfielder. If he was a direct replacement for Fernando then fine, it's very slightly improving the squad, any improvement is good, but he won't be, they're not the same type of player for a start and he'd be coming in as well as Fernando. Lining up with a potential midfield duo of Fernando and Sissoko is certainly not going to win us anything.