Will White come back into defence?

Ben White's return to fitness comes as a timely defensive boost for Mikel Arteta and Arsenal.

The versatile defender's season has been heavily disrupted by injuries, and he was rated as doubtful for the Paris St-Germain game by the Gunners manager after missing last week's draw with Crystal Palace.

As with Mikel Merino, Arteta was non-committal on Monday about whether White would be fit enough to start at Emirates Stadium on Tuesday.

But despite his return to training, you would imagine there is likely to be a temptation for Arteta to stick with the four-man defence of Jurrien Timber, William Saliba, Jakub Kiwior and Myles Lewis-Skelly that restricted Real Madrid so stoutly in their quarter-final.