It is a huge boost for the Gunners to have Williamson back in the heart of defence. Could this be the inspiration they need to beat Lyon at home for the first time?
A lovely day for a semi-final.
The Guardian has kicked off a new chapter in puzzles with the launch of its first daily football game, On the ball. It is now live in the app for both iOS and Android … so what are you waiting for?
Pre-match reading.
Arsenal (4-3-3): Van Domselaar; Fox, Williamson, Wubben-Moy, McCabe; Russo, Little, Caldentay; Smith, Blackstenius, Foord
