The ex-Spurs star has just 18 months left on his contract and
there are no plans to offer him a new one.
Carrick, 29, had an inconsistent first half to this season and
only a marked improvement will prompt a change of mind by the
management.
Old Trafford boss Alex Ferguson increasingly sees Darren
Fletcher, 26, and Anderson, 24, as his central midfield partnership
for the future.
It looked like Carrick's United career was going to be cut even
shorter after a poor performance in the 2009 Champions League
Final.
Fergie was furious with that 2-0 defeat to Barcelona.
This season Carrick has struggled as United, while remaining
unbeaten, have only fleetingly found their very best form.
He has never grown into the player United envisaged after buying
him for £14million from Tottenham in 2006.
Carrick has started 19 of United's 32 games this season and is
determined to prove he is worth a new deal. But it is a battle he
is losing right now.
United take on Birmingham at home tomorrow as they aim to stay
top with games in hand on their nearest rivals.