It's Manchester United's most pressing need as the Erik ten Hag era at Old Trafford gets underway.
A midfielder, or ideally two, to replace the departing Paul Pogba, Nemanja Matic and Juan Mata, finally solving a shortcoming in the United squad that has festered for several years now.
Their lack of a top class defensive or central midfielder - with Fred and Scott McTominay the usual combination - has again been brutally exposed by quite a few opponents in the underwhelming season that has just finished.
Sportsmail assesses some of the possible targets in this problem position and United's chances of signing them.