Why penalty for Williamson handball was correct call

A bizarre error from Arsenal defender Leah Williamson proved costly in their 2-2 draw with Paris FC on Wednesday in the Women's Champions League.With the Gunners leading 2-1 late on, England captain Williamson stopped a short goal-kick with her hand - believing it had not been taken and that she was to take it - resulting in a penalty being awarded to the hosts, converted by Maeline Mendy.The unusual incident means the Gunners are fourth in the Champions League table after their opening two game