#2 Bukayo Saka
With the injuries to Kieran Tierney and Sead Kolasinac, Bukayo Saka has stepped up well in an unnatural position. He is primarily a winger but he has done well to fill the void at left-back to cover any injuries.
However, this could just be his most important match for Arsenal yet. Saka will likely come up against Riyad Mahrez who is in great form so he will need to remain defensively disciplined. A lot of times this season, Saka has relied on Granit Xhaka to cover when pushing forward but he may need to do this less on Wednesday night.
Saka is an exceptional player and his progress has been phenomenal this season. However, the level of opposition in recent matches has been fairly minimal so playing against the champions of England will be the real test. Still, Mikel Arteta will be in the perfect position to rile Saka up for the big occasion and also give him tips on how to defend against Pep Guardiola's side.