RW: Anthony Martial
While both Martial and Rashford operate primarily on the left, Mkhitaryan's sudden dip in form meant that Mourinho has utilised both his young wingers for the last few matches.
The Frenchman already has 6 goals and 2 assists in the Premier League, and will probably start along with Rashford again today. His good run of form has also earned him a recall to the France national squad.
With many critics and fans still believing that he's yet to hit his peak this season, Martial will look to cement a place in the starting XI today with one eye on next year's World Cup.
LW: Alexis Sanchez
Sanchez has only 4 goals and 2 assists so far, but he did score a 92nd-minute winner against Burnley and then again in the 5-0 win in midweek.
He's begun to hit top form at the perfect time for Wenger, who will look to his star duo of Alexis and Ozil to provide inspiration in the attack in the absence of Lacazette.
With United missing their first choice pairing of Jones and Bailly in defence, Sanchez will look forward to exploit the vulnerability of Lindelof and Smalling today.
ST: Romelu Lukaku
Lacazette would probably have made the cut ahead of the Belgian if it hadn't been for his groin injury. The French striker might not be hogging all the headlines, but 7 goals and 1 assist in not a bad return in 14 matches.
Lukaku has 8 goals so far, but after scoring in his first 7 matches, he's come under scrutiny following a long goalscoring drought.
He was among the goals in United's 4-1 win over Newcastle last month but again failed to find the net against Brighton and Watford. But he does bring other qualities to the pitch - he also has 4 assists.
Today would be a perfect day for both the Belgian and Mourinho to get back to what he does best - scoring goals.