Oxford United have joined Plymouth Argyle in competing to sign Charlton Athletic defender Alex Mitchell in a summer transfer. The club is seeking defensive reinforcements after being left with just two senior centre-backs following their relegation. Mitchell is a 24-year-old English centre-back who spent last season on loan at Plymouth, where he was named the Supporters' Player of the Season. According to Football League World, Oxford has reportedly entered the competition for the defender. While Argyle are exploring a permanent deal for Mitchell, who has reportedly described the potential move as being an obvious choice, the transfer is not guaranteed as Oxford are set to compete to sign him. Mitchell joined Charlton Athletic on 01/07/2024 and his contract is set to expire on 30/06/2027. His current Transfermarkt market value is €800k.