Arsenal manager Arsene Wegner benched Giroud in favor of Walcott showing his displeasure in the performance of the French striker .
Giroud 's biggest challenge came midway through the first half of this season .
Arsenal manager Arsene Wegner benched Giroud in favor of Walcott showing his displeasure in the performance of the French Giroud .
Giroud 's biggest challenge came midway through the first half of this season .