Erik ten Hag feels he needs to solve his Manchester United selection puzzle for Sunday's derby with City.
The boss suggested he came up with the right solution in the second half at Nottingham Forest, during our Emirates FA Cup fifth-round win at The City Ground, when Sofyan Amrabat appeared to adopt more of a midfield role and helped the Reds dictate the latter part of the tie.
Although offering no precise details on the tactics employed, and which system he will look to use at the Etihad Stadium, Erik did admit in his club media interview ahead of the weekend that there are issues in defence to deal with.