Manchester United are ready to sell Chris Smalling this summer.
West Ham and West Brom are the early front-runners, says The Sun.
Jose Mourinho then questioned the defender's recovery from injury last month, accusing the 27-year-old of being “too cautious" when the Reds were struggling for centre-backs.
Hammers boss Slaven Bilic is looking to reshape his defence this summer and is close to wrapping up a deal for free agent Pablo Zabaleta, who has been released by Manchester City.
Baggies boss Tony Pulis could look to reunite Smalling with former United defender Jonny Evans at the Hawthorns next season.