Thomas Partey will wear the No.18 shirt at Arsenal.

Arteta: “We have been watching Thomas for a while, so we’re now delighted to add such a high quality player to our squad. He is a dynamic midfielder with great energy."

Arteta: "We’re very impressed with his attitude and his approach to the game. He’s an intelligent footballer and we’re looking forward to him integrating into our system and contributing to the progress we’re building at the moment at the club.”

Edu: "Thomas has all the attributes to be a top player for Arsenal. He is a leader on & off the pitch and he is exactly the kind of player we want at the club. We already we know Thomas very well based on the work we have done analysing his performances closely in recent times."

Edu: "With his all-round game and positive aggressive style, he will be a brilliant addition to our squad. We’ve made a strong start to the season and we want to continue to build on this with Thomas now part of our club.”