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

Subs: Votikova, Borbe, Laia Codina, Maanum, Pelova, Hinds, Holmberg, Harwood

Lyon: Endler; Lawrence, Renard, Engen, Svava; Shrader, Heaps, Yohannes; Diani, Hegerberg, Brand

Subs: Belhadj, Bacha, Junttila Nelhage, Dumornay, Becho, Katoto, Egurrola, Fathallah, Sombath, Chawinga, Benyahia, Tarciane

Referee: Desiree Blanco (Sui)

It is the holders versus the competition’s most successful side, making this a rather exciting prospect for all involved. With the prospect of chasing down Manchester City in the WSL, this looks like the Gunners’ most likely source of silverware this season. Lyon have already been victorious at Arsenal this season, defeating them at Borehamwood in the league phase but the Emirates should provide a different prospect for the French side for a team who are 14 points clear in Ligue Feminine and are yet to lose in any competition all season.

The Gunners have not lost in the league since October and eliminated Chelsea in the last round of the Champions League, so will be unperturbed by the reputation of the visitors. It should make for a cracker!

Kick-off: 3.30pm BST