Watford are trying to ship out players to meet Premier League requirements of a maximum of 17 foreigners in the squad.
Right-back Allan Nyom appears certain to leave Vicarage Roard and is a target for West Bromwich Albion.
The 28-year-old Cameroon international is close to sealing a £3m move to the Hawthorns.

Meanwhile, Lithuanian goalkeeper Giedrius Arlauskis and Colombian right-back Juan Carlos Paredes are also at risk of not making the final cut for Walter Mazzarri's squad.