Will Wayne Rooney start today against the club that have been chasing him all summer?
That is one of the decisions David Moyes will be weighing up ahead of tonight's meeting between Manchester United and Chelsea.
The United manager is alread resigned to the fact that Rafael, Nani, Ashley Young and Javier Hernandez are all missing through injury.
Meanwhile David Luiz is a doubt for Chelsea. There are suggestions that Romelu Lukaku might be given the nod up front but the identity of the three creators behind him is unclear for now. Whether Juan Mata starts will also be a key indicator of his future prospects under Jose Mourinho.
Mourinho has never lost in any of the eight games in which he has faced David Moyes but that statistic is skewed by the fact that the Portuguese boss was in charge of a big spending Blues team and Moyes led a considerably weaker Everton.