Right wing: Theo Walcott (Arsenal)
Walcott has been among the goal scorers this season and is selected in this lineup on the basis of his output in front of goal. Henrikh Mkhitaryan narrowly misses out on this spot with the Armenian international scoring just four goals in the league this season.
On the other hand, Walcott played as a striker in the early half of the season and managed 14 strikes. It is his best return in a Premier League season in an Arsenal shirt and he deserves to be in this lineup because of his improved finishing.
Left wing: Alexis Sanchez (Arsenal)
The Chilean might be entering his final year as an Arsenal player soon but has again been the club's most impactful player. He is leading the charts for the club with 19 goals and 9 assists.
Sanchez is one of the top players in the league and is hands down better than the Manchester United forwards present in the current first team squad. He tormented the Red Devils last time around at the Emirates and Arsenal will be dreaming of yet another 3-0 rout of Manchester United.
Striker: Marcus Rashford (Manchester United)
After scoring a sublime David Beckham-esque free-kick in the last game (Beckham scored a similar set piece in his last game for United), Rashford has not given United supporters any reason for missing Zlatan. He has been the difference maker for Jose Mourinho in recent weeks as the teenager has been delivering week in week out.
He stretches defences, beats them at will and finishes calmly. Rashford is proving all the hype around him splendidly and will play as the sole striker in this combined lineup ahead of the likes of Danny Welbeck and Olivier Giroud.
In total, Manchester United have seven players in this combined eleven while Arsenal have the remaining four. United have a relatively better defence and midfield than their opponents for tomorrow whereas Arsenal make up for their deficiencies in the attack.