Manchester United expect Chelsea to increase efforts to unsettle Wayne Rooney by lodging a third bid for the forward within 48 hours.
But despite the anticipation within Old Trafford of Chelsea manager Jose Mourinho sanctioning another attempt to lure Rooney to Stamford Bridge in the build-up to Tuesday's Premier League clash between the two clubs in Manchester, United remain steadfast in their determination to reject any further offer for the 27-year-old.
United manager David Moyes and chief executive Ed Woodward, backed by the club's American owners, the Glazer family, have insisted throughout the northern summer that Rooney will not be allowed to leave.
Woodward has communicated United's position to senior figures at Chelsea, but with the two clubs meeting at Old Trafford on Tuesday, there is a belief that Mourinho will authorise another bid for the transfer-seeking player in an effort to affect United's preparations and undermine Rooney's focus ahead of the game.
Chelsea have failed with bids of £20 million ($39.8 million) and £30 million for Rooney, with the London club's second offer being lodged, and rejected, two weeks ago. United's refusal to consider the bids has led Mourinho to admit that he is now considering a "plan B and plan C", one of which is understood to be Anzhi Makhachkala forward Samuel Eto'o, should Rooney remain beyond his club's reach.