Manager Mikel Arteta says he is disappointed by Arsenal's failure to make any signings during the winter transfer window, but praised the club's discipline.

Arsenal were expected to bring in an attacker after Gabriel Jesus suffered a season-ending anterior cruciate ligament injury last month, while Bukayo Saka is yet to return from a hamstring issue.

"We had a clear intention which is always when a window opens to explore the opportunities to improve our squad with players that can make an impact," Arteta said before Arsenal's EFL Cup semi-final second leg against Newcastle on Wednesday.

"With players injured, we've been impacted and we haven't achieved it. We are disappointed in that sense but as well we are very aware that we only want to bring certain kinds of players and we have to be very disciplined with that as well. I think that we were.

"It's in the profile, a player that we believe can make us much better. Financially there is a lot of ways, a lot of things that we must stay in the lane that has taken us this far and from there try to improve."