Granit Xhaka believes Arsenal's new £45million arrival Thomas Partey will add an extra dimension to their team - having witnessed his qualities first hand.
Partey played in both legs when Arsenal lost to Atletico Madrid in the UEFA Europa League semi-finals in 2018.
Playing in his usual central midfield position, he helped Atletico mount an outstanding rearguard action at the Emirates to claim a 1-1 first leg draw having played 80 minutes with 10 men following Sime Vrsaljko's red card.
Partey then slotted in for the suspended Vrsaljko at right-back in the return leg in Madrid, which Atletico won 1-0 to reach the final.