FC Barcelona will be at home, but without fans, and with a limited number of substitutes as they take on Napoli in the UEFA Champions League.
While Quique Setién has toyed with the idea of reverting to a back three, which might be his true preference, it seems he has recognized that Barcelona can’t or won’t adapt to it. Instead we shall probably see a back four, and perhaps, a 4-3-1-2. That’s the formation the team used against Villarreal to devastating effect, with Lionel Messi as a playmaker and Antoine Griezmann and Luis Suárez deployed as forwards.