The Gunners went ahead at the Hawthorns but slipped to defeat with Santi Cazorla missing a penalty and Francis Coquelin forced off through injury Arsene Wenger felt Arsenal were "incredibly unlucky" to fall to a 2-1 Premier League loss at West Brom as the visitors surrendered a one-goal lead and missed a penalty. Olivier Giroud handed Arsenal the advantage at the Hawthorns, but James Morrison's effort and a Mikel Arteta own goal put the hosts in the ascendancy before the interval. Santi Cazorla fluffed his lines badly with a late penalty as Wenger's side lost in the league for just the third time this season. "It was a very bad day for us. We were incredibly unlucky and never deserved to lose," Wenger told Sky Sports . "We gave everything to win and did not deserve this. "The only part where maybe we lost focus a bit was between the 35th minute and the 45th minute. Our focus was not 100 per cent then. We were lacking concent...