Former Newcastle United striker Alan Shearer has warned Arsenal that they cannot afford to repeat the poor performance that saw them suffer a 3-0 defeat to Brighton and Hove Albion in the Premier League on Saturday.
The defeat at the Amex Stadium ended Arsenal’s perfect start to the campaign and raised questions over their consistency in the early stages of the season. 
Pascal Gross opened the scoring for Brighton before Charalampos Kostoulas doubled the hosts’ advantage in the first half.
Chema Andrés completed the rout in the 57th minute, heading Brighton’s third goal to condemn Arsenal to a heavy defeat.
The result dropped Arsenal to second place in the Premier League table, with Manchester City having the opportunity to move ahead when they host Sunderland on Sunday.
Speaking on Match of the Day, Shearer said Arsenal’s position remained positive despite the defeat but stressed that performances of such a poor standard could not become a regular occurrence.
“I would say there’s no panic because after five games last season, Arsenal had 10 points,” Shearer said.
“After five games this season, they’ve got 12 points.
“But that performance can’t happen too many times, if again.”
