Tierney and Holding start, kick-off delayed at Emirates
Summer signing Kieran Tierney will make his debut for Arsenal in their Carabao Cup third round clash against Nottingham Forest at the Emirates.
The Scottish international full-back, signed for around £25m, makes his first start as a Gunner after recovering from a double hernia operation following an injury picked up last season when at Celtic.
Rob Holding, who was so impressive for the Gunners last season until a knee injury sustained against Manchester United ruled him out for nine months, also makes a return to the side, which sees 11 changes to the team which started against Aston Villa here on Sunday.
And Hector Bellerin, again a long-term absentee, this time a knee injury picked-up against Chelsea in January, starts from the substitutes bench.
The full Gunners side is as follows: Martinez, Tierney, Ozil, Torreira, Holding, Mustafi, Chambers, Nelson, Willock, Smith Rowe, Martinelli Subs: Bellerin, Ceballos, Macey, Balogun, Bola, Burton, Saka
Kick-off at the Emirates has been delayed by 15 minutes, until 8pm, due to travel issues affecting supporters.