United have struggled in midfield this season and this happens to be Liverpool's strongest area at present with Alonso and Gerrard staryting to develop an understanding. Keane filling in at the back has left them less comnbative in the middle and slow at the back. If Ferdinand returns with Wes Brown and Keane pushes back into the Middle it opromises to be a titanic battle in midfield.
My head says a draw is written all over this game but as LFC have proved recently at old trafford a win is the usual result there