Alexis Sanchez scored twice as Arsenal edged a five-goal thriller to move within a point of fourth-placed Liverpool.
Sportsmail's Sami Mokbel highlights the five things we learned.
Comedian Jack Whitehall was at Selhurst Park to watch his beloved Arsenal on Thursday night. He’s not had much to laugh about of late; the Gunners heading into this encounter with just one victory from their previous five Premier League outings. Shkodran Mustafi’s 25th minute opener would have put a smile on the funnyman’s face, though.
Just over 24 hours after saying: ‘We didn’t score enough goals away from home, so that’s why I switched to a back four’, Arsene Wenger reverted to a back-three for the clash at Selhurst Park.