source pls.
Dont think sanchez and sissoko ever come off as trouble makers. If anything id have thought winks and dier would be .
I don't have a source but it seems pretty clear that Aurier, Sissoko and Ndombele were a tight group. Aurier has been rumoured to want out for a couple of years now and could be unhappy with his lack of playing time, Ndombele did want out previously and looks again to be less than thrilled at times during the games. I think it is quite possible that Sissoko is either getting grouped in with there unhappiness or has joined them in being unhappy as well after being dropped.
It is all assumptions on my part but this season I don't think it is unrealistic to think that Sissoko and his closest friends on the team are all unhappy.