By Euan Burns Barcelona’s season is at risk of going down a dark path with Xavi’s future the major talking point around the La Liga champions right now. They will try to change the narrative with a win away at Real Betis on Sunday. The league table doesn’t look as pretty as Barca fans would have hoped when the campaign began. They can climb back into third with a win in Seville, but a loss could see them end up in fifth by the time Atletico Madrid finish their match against Granada. There are quite a few fitness concerns for Barca with a number of important squad players out injured like Inigo…