Manchester United are yet to open new contract talks with Phil Jones and Chris Smalling.
The Daily Mail says both men will see their contracts with the club expire at the end of next season and talks on new deals are yet to be opened with either.
United are thought to be relaxed about the situation but will be reluctant to lose the pair for nothing.
Jones, 23, and Smalling, 25, formed a resolute centre-back pairing in United's 3-0 home victory over Tottenham and 2-1 defeat of Liverpool at Anfield - regarded as the club's best performances under Louis van Gaal.