Chelsea face Arsenal in the FA Cup final on Saturday, May 27 (). Read on for our betting tips and the latest odds. Paddy Power new. Outright Betting - Bet on the FA Cup with Paddy Power! New customers Get a RISK FREE €/£10 BET for new customers only! T&Cs Apply. However, the Gunners are also assured of support in the Chelsea vs Arsenal FA Cup Final betting odds as they seek to lift this trophy for the third time in four.