Bayern Munich routed Arsenal 5-1 in their Champions League last 16 first leg clash on Wednesday thanks to a blistering spell of three goals in 10 second-half minutes.

Arjen Robben opened the scoring after just 11 minutes at the Allianz Arena when the Dutchman beat Arsenal goalkeeper David Ospina with a fine left-foot strike into the top corner.

Chile international Alexis Sanchez levelled for Arsenal on the half-hour, hitting in a rebound at the second attempt after he had a controversial penalty saved by Manuel Neuer.

But Robert Lewandowski restored the German side’s lead after 53 minutes, heading in a cross from Philipp Lahm with Thiago Alcantara adding a third just three minutes later.

Thiago piled on the misery for Arsene Wenger’s men with his second and Bayern’s fourth just after the hour with substitute Thomas Mueller adding a fifth two minutes from time.

Madrid battle back to beat Napoli

Real Madrid came from behind to beat Napoli 3-1 in the first leg of their Champions League last 16 tie at the Santiago Bernabeu.

Lorenzo Insigne gave the Italians an early lead but Karim Benzema equalised in the 18th minute, before Toni Kroos and Casemiro both scored early in the second half for the holders.