The 23-year-old has found opportunities increasingly limited under manager Xabi Alonso, having made just 307 minutes of Premier League appearances this season. The France international has not started a league match for more than two months and is now considering whether a move elsewhere would offer a better opportunity to play regularly.
According to BBC Sport's Nizaar Kinsella, Gusto has communicated internally that he is open to a January departure. His position has been made clear to the club, although it remains uncertain whether Chelsea will be willing to sanction a transfer.
Gusto attracted significant interest during the summer, with Manchester City and Liverpool among the clubs reported to have explored his situation. However, no move materialised after Chelsea placed a valuation of around £75 million on the defender.
The club were not actively looking to sell him at the time, despite having signed Marco Palestra from Atalanta for a reported £47 million. The arrival of the Italian has added further competition at right-back, while academy graduate Josh Acheampong has also been given opportunities.
Acheampong has increasingly moved ahead of Gusto in Alonso's selection, even with captain Reece James currently unavailable through injury. In Chelsea's last six Premier League matches, Gusto has either remained an unused substitute or come on during the second half.
His most recent league start came around two months ago, a significant change for a player who had previously been a regular in the side.
Gusto joined Chelsea from Lyon in 2023 for a reported £26.3 million and has since made 100 Premier League appearances for the club. His contract runs until 2030, meaning Chelsea remain in a strong position when it comes to negotiating any potential departure.
The Frenchman reached that century of league appearances when he came off the bench during Chelsea's 1-0 defeat against Sunderland before the international break.
The question now is whether Chelsea would maintain their previous valuation if Gusto formally seeks a move in January. A fee of £75 million could prove difficult for interested clubs to justify, particularly given his reduced playing time.
Manchester City were among the clubs to consider him in the summer, although it remains unclear whether they retain an interest. Liverpool also made enquiries about his situation before the previous deadline, but no agreement was reached.
Gusto is currently away with the France squad for their Nations League fixtures against Italy and Türkiye. The international break gives him an opportunity to assess his situation before the transfer window opens.
For Chelsea, the decision will involve balancing the defender's desire for more regular football against the need to retain sufficient depth at right-back. With James, Acheampong and Palestra competing for the position, Gusto's future at Stamford Bridge is now uncertain.