Arsene Wenger admits the transfer window will always be difficult for Arsenal because of the expectation the fans place on the club to complete signings of big name players.
The Arsenal manager has often come under fire for his reluctance to spend big on on star names in the transfer market, with Wenger instead favouring the recruitment of cheaper players with the potential to grow at the Emirates Stadium.
Last summer represented somewhat of a change in tactic from Wenger, with the Frenchman signing prominent Spain international Santi Cazorla and German star Lukas Podolski.
But Wenger says the transfer window will continue to prove a testing period for Arsenal, with fans wanting to see the likes of Lionel Messi arrive at the Emirates Stadium rather than players yet to forge their name.
"It's very difficult because the level of expectation is very high," Wenger told the official Arsenal website.
"People want to see Lionel Messi. They don't want to see a promising guy. First of all the name gives hope. When a guy has no name people are already sceptical, so it's much more difficult for us."
The Gunners are reported to have made an approach for the 24-year-old Spain international, who has a release clause of around £14 million.