Arsene Wenger, the Arsenal manager, watched from the stands as his side thumped bitter rivals Tottenham Hotspur 4-1 at White Hart Lane on a dramatic evening in the Carling Cup third round.
Wenger, who was serving a one-game FA ban for improper conduct, picked a strong side in the competition he normally leaves to the club's emerging talent, and they were too much for Tottenham, who took the game into extra time but were overwhelmed as tiredness took hold.
The key moment of the night however was highly controversial as Arsenal's Samir Nasri appeared to dive under a challenge from Tottenham defender Sebastien Bassong to win a penalty that the Arsenal player converted to put his side 2-1 ahead.
Bassong accused Nasri of diving. He said: "I did not touch him, I did not grab him. I have seen the video and from my point of view it was not a penalty. I touched his chest but I did not grab him. He went down too easily."
The biggest shock of the night was at Griffin Park where David Moyes was involved in a confrontation on the pitch with an Everton supporter after his team lost on penalties to League One Brentford. The Premier League side led after four minutes through Seamus Coleman but were pegged back shortly before the interval by Gary Alexander. Charlie MacDonald had the chance to give Brentford the lead from the penalty spot in normal time but scored in the shoot-out which Brentford, with four flawless penalties, won 4-3. Jermaine Beckford's kick was saved by Richard Lee and Phil Jagielka hit the post.
Everton are yet to win in the Premier League and Moyes admitted: "I'm concerned, as any manager would be in this position. We wanted to have more points on the board and we did not want to be knocked out of the cup. I changed things this season after the way we started last the two seasons. I have a job on. This is where I have to manage. I take responsibility."
He added of the confrontation: "One supporter threw a bottle into the crowd. I said to him, 'I saw what you did. I saw your face'. I wanted to grab him, but I guess that would only have inflamed the situation. If the police want my help to identify the guy I'd be delighted to do so."
Brentford manager Andy Scott said it was the biggest win of his managerial career. He added: "Now we want another big club, at home, and this time on television."
Other third-round ties saw the Premier League's bottom club West Ham United win 2-1 at Sunderland, Championship side Burnley beat Premier League Bolton 1-0 in the Lancashire derby, and Stoke City beat Fulham 2-0.
Arsenal's joy at beating Tottenham was tempered by concerns that Kieran Gibbs may have broken his bone in his foot. The recently-capped England international broke a metatarsal last season and he will be scanned today to determine whether he has a repeat of the same injury.
Wenger said: "It is a metatarsal again, it is the one next to the one he had broken, the second one, so we hope we have good news tomorrow morning, because that would be a massive blow to us."
The news comes after it was revealed Arsenal captain Cesc Fabregas will be out for three weeks with the hamstring injury he sustained at the weekend in the 1-1 draw at Sunderland, making him doubtful for the Gunners' encounter with Premier League leaders Chelsea on 3 October.
Wenger said he enjoyed watching Arsenal's passing game from the stands, after accepting a charge of improper conduct concerning his behaviour at the end of Saturday's match at Sunderland.
He said. "I accepted the FA charge because what I was charged with, I did. I could not deny it. I could appeal so thought it was better to get it behind me. It was quite enjoyable to watch it from upstairs. Communication was a problem sometimes but overall it went well."
Wenger added that he might be taking the Carling Cup seriously this season. "If everybody is fit we can go far in this competition," he said. "We got a few reproaches that we didn't take the competition seriously. You have momentum going and it's important not to interrupt it."
Tottenham manager Harry Redknapp admitted his team were out on their feet in extra time. "I looked at my players and four of them were cramped up," he said. "I knew I was in trouble. People kept saying we had to take him off or him off, but I only had one sub. It was going to be difficult."