Tomas Rosicky believes UEFA Champions League qualification will be within touching distance if Arsenal triumph over Manchester City on Tuesday.
After Saturday's 2-1 win over Bolton - in a game where Rosicky scored his team's equaliser - The Gunners are now looking secure in fourth spot.
Both Bolton and Everton are five points back, and Arsenal also enjoy a game in hand which comes on Tuesday night against Manchester City at Emirates Stadium.
A victory would extend their advantage to eight points with four games to play, and Rosicky believes such a gap would be almost insurmountable for The Gunners' rivals for fourth spot.
However, the Czech midfielder is wary of the threat City pose after their draw with Liverpool on Saturday.
"There are still a few games to play but if we manage to win it, then we will be very close," Rosicky told his official website.
"Not to mention that anything can happen ahead of us as Liverpool lost points in Manchester."
The Czech Republic international has also revealed that he has been suffering from illness in recent days and that a cold affected his performance at Emirates Stadium.
"I felt very well already, however my movement was not absolutely ideal," Rosicky continued.
"I did not do so much running as I do usually.
"I hope I did not play bad, but now I have to rest properly to be ready for Tuesday's game against Manchester City.
"We'll see how I feel tomorrow. Anyway I think all the problems have gone and from now on I can focus purely on football."