Arsenal boss Arsene Wenger blasted Portsmouth for their negative tactics in a 0-0 draw which cost his side top spot in the Premier League.
Arsenal failed to score for the first time in the league this season against a defence containing former Gunners star Sol Campbell.
Wenger claimed Pompey neglected playing any football in the second half, instead favouring a blanket defence.
"It was surprising to see them making up the numbers with ten men at the back. They have an experienced defence and their midfield was focused on defending," said Wenger whose side are now second behind champions Manchester United who beat Sunderland 4-0.
"I'm not disappointed with (Portsmouth coach) Harry Redknapp because what his team did, they did well but they are not going to be able to play like that every week.
"They conceded four goals at Liverpool (at the weekend) and the team was just ready to concentrate on defending."
Portsmouth were worth their point and may have had two more when Benjani went cantering through the Arsenal back-line 15 minutes from time only to lose his footing after rounding goalkeeper Manuel Almunia.
In a poor first-half at Fratton Park, Niko Kranjcar first tested Almunia from range before Tomas Rosicky sent Portsmouth goalkeeper David James sprawling to save.
The second period was more satisfying as Kranjcar turned Bakary Sagna and forced Almunia into a low diving stop.
Arsenal's Aleksander Hleb wasted a golden opportunity to tee up Cesc Fabregas when he burst down the left but opted to wastefully shoot instead of crossing.
Benjani's unfortunate miss was the last Pompey saw of the Arsenal goal as the home side retreated into their defensive shell.
Rosicky went close again, ducking in between Lauren and Benjani before skipper William Gallas spurned Arsenal's best chance by ballooning over from just five yards.
For Redknapp's side it was a welcome point after two games against Tottenham and Liverpool in which they had been outplayed.
Their pursuit of European football had been marginally curtailed but Redknapp insisted confidence has never dropped.
"I never thought we put our heads down really. Sol was magnificent at the back and it was a very good point for us," said Redknapp who defended his team's conservative tactics.
"What are you supposed to do when you haven't got the ball, attack? What system did they play again? One up, we played one up.
"They are very good at keeping the ball - we know that and if you open up against them they will rip you to pieces.
"We stuck in there and ended up having the best chance of the game. I don't want to argue with Arsene, he has got his opinion but we are Portsmouth remember. What are we supposed to be doing against Arsenal?"