Charles, 22, earned consistent praise throughout Southampton's Championship campaign following their relegation from the Premier League in 2025, with his composure, range of passing and defensive instincts prompting reported interest from Manchester United — who are actively seeking midfield reinforcement under manager Michael Carrick.
When asked directly about his future, Charles declined to engage with the speculation.
"At the moment I am focused on Southampton and the next campaign. Obviously we'll see what happens when we go back into camp or pre-season."
Charles joined Southampton from Manchester City in the summer of 2023 for approximately £10m and became a first-team regular at St Mary's. He has also established himself as a key figure for Northern Ireland at senior international level.
Manchester United's interest represents a significantly elevated opportunity — the club are preparing for Champions League football next season and regard Charles as a cost-effective domestic option with the potential to develop further within a top-level environment.