Arsene Wenger concedes that Real Madrid and Barcelona have raced ahead of all other clubs this season, revealing his fear that Arsenal are being left behind by Europe's big spenders. GettyImages Arsene Wenger is aiming to get Arsenal out of the Champions League group stage • Wenger: Our confidence is back • Ramsey out of Dortmund trip • PLAY Champions League fantasy Wenger reinforced his own squad on transfer deadline day by signing Park Chu-Young , Per Mertesacker , Andre Santos , Yossi Benayoun and Mikel Arteta . However, the Gunners' tactician believes they are some way off the pacesetters ahead of their Champions League opener away to Borussia Dortmund. "I believe that this season, I see two teams that are above the rest - Real Madrid and Barcelona - and the rest have to catch up during the season," Wenger told The Guardian . "So for us, it's a new start because we are a new squad. What is at stake during the group stage for us is to show t