Plymouth Argyle are reportedly one of the clubs interested in Derby County defender Curtis Nelson, whose contract is due to expire in the summer. The player's future has become uncertain following his absence from the substitutes' bench for Derby's last two matches. Manager John Eustace told Derbyshire Live that, when asked about potential bids, he was not aware of any offers for Nelson. Eustace explained that Nelson, who began his career at Plymouth, remains part of the squad but has not been on the bench because the team cannot accommodate a large number of defenders.