Emmanuel Eboue says his Arsenal team-mates believe they can see off Manchester United and book their place in the UEFA Champions League final.
The Gunners are currently second favourites to secure a place at this year's final against either Barcelona or Chelsea in Rome after slipping to a 1-0 defeat in the first leg at Old Trafford.
However, Arsenal could have slipped to a heavier defeat had it not been for the blistering form of Manuel Almunia and Eboue claims the belief is there.
Arsene Wenger's side have already beaten The Red Devils on home soil this season, but Eboue says Tuesday's match will be the biggest-ever match at the Emirates.
"We know it will be a big game for us. It's our biggest game of the season, also the biggest game the Emirates will stage," he told skysports.com.
"We will need the fans to be behind us for 90 minutes, even for 120 minutes!
"It will be hard because they are the European champions, and they are back on song following their blip.
"We believe we can do it. We are ready. It's a massive game."