Arsenal manager Arsene Wenger insists that he could sign new players during the January transfer window.
The Gunners suffered a number of injuries this campaign and will be without a number of key players for the busy Christmas period including midfielder Jack Wilshere.
And the 66-year-old says he will adopt an open-minded approach ahead of the January transfer window.
"We are open-minded [ahead of the transfer window]," Wenger explained.
"We are not the only ones who can decide about the speed of the transfers because we have to adapt to the availabilities and the speed of negotiations and the willingness of clubs to sell. We are open to do something because we are short."
Asked about facing Barcelona in the Last 16 of the Champions League he added: "We are more mature.
"We played against Barcelona with top teams, but very inexperienced and very young. Barcelona were in full power but we still managed to beat them and it was always very tight.
"We have never been beaten [comprehensively] and we were sometimes unlucky as well. That is in our minds. That is deep in my body as well. I do not forget that. We have a chance, an opportunity to put things right, and we'll focus on that.
"We are playing against a team that have the trophy and are the best team in Europe and I think we have a good chance to go through. It is a difficult challenge but an exciting one as well."
