Arsenal manager Arsene Wenger has lamented his side's 2-1 loss to West Brom on Saturday, describing it as "a bad afternoon".
The Gunners took the lead in the 28th minute through Olivier Giroud before James Morrison equalised for the hosts in the 40th minute and two minutes later, Mikel Arteta scored an own goal to give the Baggies the lead.
Spanish midfielder Santi Cazorla had a chance to seal a point for Arsene Wenger's side from the penalty spot, but failed to capitalise on the chance.
"It was a bad afternoon," said Wenger, arsenal.com reports. "We missed a penalty, we gave a goal away on set-piece, that is perfect to make your afternoon a nightmare and we missed open goal chances.
"I believe that West Brom they were strong in the fight and they had one 100 per cent commitment as well and you have to give them credit for that.
"But overall I felt it dropped a huge blow when we scored and we just had to make sure they didn’t come back with a easy goal and that is where we were disappointed today. "But I cannot be mad at the team because they gave what they could until the last minute but we lost a bit of focus at 1-0 - at 35 minutes we were 1-0 up and then at 45 we were 2-1 down. Our defending on that level was very, very poor."