Valencia travel to the Emirates Stadium on Thursday evening to take on former manager Unai Emery's Arsenal side in the first leg of their Europa League semi-final.
Both sides are in a similar position domestically, with Arsenal fifth in the Premier League and Valencia sixth in La Liga, meaning that success in the Europa League could be the best way for them to secure Champions League football next season.
Latest odds
The Gunners are favourites to claim a first leg win with bet365 offering a home success at 9/10 (1.