Thomas Partey is the "kind of player Arsenal have needed for quite a long time", according to Gilberto Silva, who says the £45 million ($62m) star makes Granit Xhaka and Co look better.
Arsenal triggered the release clause in Partey's contract at Atletico Madrid to lure him to Emirates Stadium in October, bringing a long-running transfer saga to an end in the process.
The 27-year-old has struggled to make a sustained impact due to a string of fitness issues, but he was back to his best during Sunday's derby win over Tottenham, leaving Gilberto convinced that he completes Mikel Arteta's midfield.