Crystal Palace are considering moves for Manchester United defender Aaron Wan-Bissaka and Lens midfielder Cheick Doucoure, BBC Sport understands.
Wan-Bissaka, an academy graduate, left the club to join United in a £50m move in 2019.
Given the right-back's high wages, a loan deal seems a more likely option.
Palace are also considering a move for 22-year-old Mali international Doucoure with boss Patrick Vieira keen to bolster his midfield options.
While Palace are keen on Wan-Bissaka, new United boss Erik ten Hag has not yet had the chance to have a look at the players who he would like to keep in his squad for next season.