Arsenal were in good shape in the London derby against Tottenham Hotspur, registering a 3-1 victory over The Lily Whites to mark a third successive victory in the top flight.
Being optimistic of a top four position for Arsenal, Paul Merson also added that such a goal can be achieved if the first team stars remain fit.
"If that Arsenal XI stays fit, they can challenge for the top four. If Arsenal keep those players fit and they play every week, they would have a chance of getting in the top four and cause problems.
"They have no Europe this season, so will have time to recover and work on the team," Merson told Sky Sports News.
"Mikel Arteta had a lot of injuries at the start of the season and what I liked about him was he went to Burnley with a very attacking team, under pressure, and he took a chance, got the ball down when they had it and played.
"And he absolutely produced in that game and they were brilliant when everyone thought they would be bullied."
The Gunners, on 10th position in the Premier League table and ahead of Spurs on goal difference will travel to Brighton Hove Albion on Saturday.
The 2004 Premier League winners will also prepare for fixtures against Crystal Palace, Aston Villa and Leicester City in their next three league games after the international break.