Former Arsenal defender Martin Keown has urged the current crop of players at the Emirates to learn from their "unbelievable" 3-3 game against Anderlecht in the Champions League.
On Tuesday, the Gunners were leading 3-0 against the Belgians with 30 minutes to go, before Anthony Vanden Borre struck twice and Aleksandar Mitrovic netted a stoppage-time equaliser.
Keown told BBC Sport: "You have to learn from it, you have to be more secure at the back. To lead 3-0 and ship three goals in the manner they did was unbelievable. They have to regroup and build from that now.
"Alexis Sanchez is the shining light taking their season forward at the moment. Swansea will be a tough game this afternoon."
Arsenal travel to Swansea City later this afternoon in the Premier League.
