The Gunners had to once again come from behind at Emirates Stadium, after Nicolas Anelka had netted against his old club.

Tomas Rosicky levelled and Cesc Fabregas struck just 44 seconds after the restart to turn the match in the home side's favour.

With their lead over the Trotters now up to five points and holding a match in hand - at home to Manchester City on Tuesday night - a return to top-level European club football next season looks more secure.

Wenger said: "It is a big step. To lose the game today would have put us in a bad situation.

"I feel I am happy with the performance of the team and happy with the mental strength we have shown because we were 1-0 down and we come back to win.

"I got a quick response and we got chance after chance and in fairness we outplayed Bolton through the pace of our passing.

"But overall, scoring 2-1 in the second half, we had a handbrake on our finishing after that and that is maybe why we did not score three or four."

It has been a difficult couple of months for Arsenal, who lost the Carling Cup final to Chelsea and then crashed out of both the FA Cup and Champions League.

Captain Thierry Henry, fellow marksmen Robin van Persie and Theo Walcott are all out injured, adding to Wenger's problems, his side having failed to won for the previous four games.

"With a team you live in a tunnel and sometimes you have to experience going down and flirting with Hell to see how much you can deal with that to become stronger," Wenger said.

"We had a disappointing three or four weeks and I am very well with how the team has responded.

"I respect the way they have behaved in the last three weeks, even if they were most painful three weeks of the season."

Bolton had Ivan Campo was sent off late on for two yellow cards - and could have been awarded a penalty when the ball bounced up to Emmanuel Eboue's arm, but referee Rob Styles waved away the appeals.

Manager Sam Allardyce lamented the way his side lost their grip on the game.

He said: "We just conceded too much ground and stopped playing for some strange reason.

"Within the first 15 minutes it was looking pretty good and we got the goal that we wanted and had an opportunity to nick a second.

"But that did not come and really invited too much pressure on ourselves and being happy with defending which is a great shame when we were causing them problems."

Allardyce was less than impressed to have seen the penalty shout turned down.

He added: "We are disappointed in the referee because of that decision. That was a major one he has got completely wrong.

"But it is Arsenal. We are away, and we know clubs like ours do not get those decisions.

"We know we do not and everybody else knows we do not.

"Nothing we can do about it now, but I can complain because I need to.

"On such a big occasion, on such a big day that is a massive massive decision that has gone against us which could have given us a point which could have been a major point for us."