I think it will be:
De Gea
AWB-Lindeloff-Maguire-Young
Pogba---McTominay
Mata
Andreas---Greenwood---James
Would have maybe had Chong above Andreas before his dismal performance this morning. Mata or Lingard is up for grabs as well.
I'd be more confident with Martial in the squad. Or even someone like Gomes starting above Mata. But don't think the latter is going to happen.
Honestly, if Arsenal are clever and prevent our counter you could be in for a big win.