Man Utd boss Ferguson planning for big summer market campaign
The News of the World says Ferguson has instructed his brother Martin to identify players for several positions.
Other positions being considered are at left back, where Ferguson wants an understudy to the excellent Patrice Evra.
Despite showing promise after their move from Brazil, twins Rafael and Fabio da Silva have failed to make the grade.
Ferguson also wants another central midfielder next summer and a striker to support Wayne Rooney.