Ian Wright left extremely worried about Arsenal after what he saw in Chelsea win

However, the former striker, who netted 185 goals for the club between 1991 and 1998, remains troubled by Arsenal's capacity to see out tight encounters as the title race intensifies.

"Arsenal showing those nerves, those jittery nerves at the latter stages of games, they need to take the opportunities earlier on so they can relax at this stage," Wright told Premier League Productions.

Both goals in the London derby came from set-pieces, with the match proving a scrappy affair between the two sides.

William Saliba broke the deadlock in the 21st minute, heading home from a corner to give the hosts the lead.

Chelsea drew level in the second minute of first-half stoppage time when Piero Hincapie inadvertently turned the ball into his own net from a Blues corner.

The visitors began the second period with momentum before Pedro Neto received his marching orders with a red card.

Jurrien Timber ultimately secured all three points for Arsenal, nodding in from a Declan Rice corner in the 66th minute to restore the Gunners' advantage.

Wright expressed particular alarm at how Chelsea grew into the contest after being reduced to ten men, rather than wilting under the numerical disadvantage.

"Chelsea, once they went down to 10 men, they started to play. It was worrying," he observed.

The Gunners legend pointed to a recurring pattern of second-half fragility that opponents are beginning to exploit.

"We're seeing in the second half of games, you can get at Arsenal," Wright added. "It comes down to 'you get the job done' and I'm happy the job is done, but I'm going to be nervous for the next game because I'm seeing that again in the second half."

The statistics support his apprehension, with 14 of Arsenal's league goals conceded this campaign coming after the interval.

The closing moments of the match left Arsenal supporters on edge, with goalkeeper David Raya producing a vital fingertip save in injury time to deny Alejandro Garnacho's dangerous cross, while Liam Delap also had a late effort chalked off for offside.

Arteta heaped praise on his Spanish stopper for maintaining concentration when called upon.

"The save that he made in the last action... it's a cross, not a shot, but he ended up with an unbelievable save," the Arsenal manager said.

"My heart almost stopped, but David's hand was there to bring it back to life."

Wright also expressed bewilderment at VAR's decision not to award Chelsea a penalty when the ball struck Declan Rice's arm prior to the equaliser.