I guess it would be a huge slap in the face to Gayle as the more senior strike (26 compared to mitro at 21).
Probably the correct decision but can see Mitro as No.9 in long run.
Janmatt
Lascelles
Mbemba
Perez
Ritchie
Mitrovic
Those for me are the keys players in our team who should start when fit.
The best team will be found by Rafa in time around those.