Juventus are chasing Borussia Dortmund defender Mats Hummel.

Juve GM Beppe Marotta wants a new centre-half signing for the January market and had sports director Fabio Paratici make the trip to London to see Hummels in action against Arsenal last night.

The 22 year-old is already a first-choice with Germany and Juve intermediaries believe they can land the youngster for €15 million.

Also in action at Emirates was long-time Juve target Theo Walcott. The Arsenal winger is regarded highly by Juve coach Antonio Conte.