The 20-year-old winger has made just one Premier League appearance since joining the club in August.
Alex Iwobi, Glen Kamara, Ismael Bennacer and Krystian Bielik all made their debuts for the Gunners.
Wenger believes Mikel Arteta, who missed a major part of last season through injury, has the qualities required to be a manager.
Wenger believes his team's lack of creativity and poor possession are reasons for League Cup exit.
Arsenal could be without eight first-team players for their clash against Swansea City on Saturday.
Laurent Koscielny is likely to sit out of Arsenal's game against Sheffield Wednesday.
Joel Campbell and Calum Chambers will start for Arsenal against Sheffield Wednesday
Arsenal will travel to Yorkshire to take on Sheffield Wednesday in the fourth round of the Capital One Cup on 27 October.
Hackett wants the FA to intervene and talk to Jose Mourinho over his attitude towards referees.
Gunners to field rotated side in their Capital One Cup tie against Championship outfit.
England international says current absence has been the "mentally the toughest to take".
Arsenal have scored 18 goals thus far this season, but only three from set-pieces.
The Gunners beat Everton following their victory over Bayern on Tuesday night.
Gedion Zelalem joined Rangers on loan until January earlier in the summer transfer window.
Arsenal moved to the top of the Premier League after beating Everton 2-1.
Arsenal host Everton at the Emirates Stadium on Saturday (24 October). Find out where to watch live.
Walcott expected to play upfront for crucial weekend fixture against Everton.
Arsenal boss claims he 'would cry' if busy fixture list was changed and supports Boxing Day matches.
Gunners boss concedes he probably should not have played Welsh international against Watford.
Susana Monje confirms club 'have to be prudent' in the transfer market to balance their books.
Alex Iwobi signed a new long-term contract with Arsenal in early October.
Ramsey is out for a month while David Ospina is absent until after November's international break.