Against poor opposition he is dominant, but when he comes up against class he loses his bottle completely.
I'm sorry but you are talking absolute rubbish. You clearly know zero about European Football and should ask question rather that shout the odds when you have no idea what you are saying.
Sissoko does not bottle it tool some of his better performances are in Europe and he does his work in a workmanlike fashion, he is a not Ronaldinho or Lampard but does his job almost to the same standard at times.
He will be one of the better Midfielders in Europe in 2-3 years