Mikel Arteta has admitted he doesn’t understand why Inter Milan were awarded a penalty and Arsenal weren’t during Wednesday’s Champions League clash.MILAN, ITALY: Hakan Calhanoglu of FC

Mikel Arteta has lashed out at the referee in Arsenal's 1-0 defeat to Inter Milan for two penalty decisions that went against his side on Wednesday evening. The Gunners have been in impressive form in Europe through their first three games having not conceded a single goal and picking up seven points.

Hakan Çalhanoglu's spot-kick in first-half stoppage-time settled a tight contest at Stadio San Siro and handed the Gunners a fresh setback in their Champions League campaign. Mikel Merino was adjudged to have handled in the box 17 minutes after being involved in an incident at the other end of the pitch in which he was clattered by Inter goalkeeper Yann Sommer.