Arsenal coach Arsene Wenger on Thursday confirmed that striker Olivier Giroud had surgery on an injured tibia and will be sidelined for the rest of 2014. The French tactician alsorevealed that the club would not seek an immediate replacement for the France striker. Wenger was speaking following his team’s 1-0 UEFA Champions League second-leg playoff victory at home toTurkish club Besiktas. Arsenal won the two-game series by a combined score of 1-0.