Gyokeres likes to drift to the left and cut in on his right foot but against Arsenal, he peeled onto Gabriel’s side instead. He did not find much joy, however, as Gabriel repeatedly manhandled him or stepped in front to cut out the pass to his feet.

Arsenal need to be ruthless to secure a win against Sporting and snap their negative run of form away from home in the Champions League, manager Mikel Arteta said ahead of Tuesday's clash.