Another book of lamentations by Wenger after Arsenal loss at Swansea

Swansea came from a goal down to defeat Arsenal 2-1 in Sunday's premier league game which sa the Gunners taking the lead and losing it again.

Arsenal took the lead after in-form forward Alexis Sanchez fired home from a Danny Welbeck pass before Gyfil Sigurdsson leveled through a spectacular free-kick.

Bafetimbi Gomis came from the bench to grab the winner for Swansea.

It could be recalled that Arsenal lost a three goal lead to Anderlecht in the Champions League last week, however, the Gunners boss agreed that his team lacked ''some spark or killer instinct'' to seal off games right now.

''It’s disappointing to throw a game away like we did. We were 1-0 up and had to be tight defensively and wait for that second chance. But you have to credit Swansea who didn’t give up,'' Wenger told BBC Sport.

''Football you can believe anything is possible, any minute you can concede. Bafetimbi Gomis is good in the air and it can happen. You have to accept that Swansea will fight until the last minute. We eased off at 1-0 and let them back into the game.

''Football is down to performances. People can say what they want. We are here to produce performances, and didn't do that right until the end of the game.

''We lacked some spark or killer instinct to take the game away from Swansea.''

''If you want to challenge the Premier League we have to be more realistic than we were today.''