Arsenal faced a tough task in the first leg of the UEFA Women's Champions League semifinal against Lyon. The visitors struck early through Kadidiatou Diani, and although Arsenal improved in the second half and got a penalty, Lyon's fast counterattack restored their lead. Lyon's attack was impressive, and Arsenal struggled to contain it. Arsenal had more possession but failed to be clinical in front of goal. The second leg will be crucial for Arsenal to mount a comeback and advance to the final.