Edouard Mendy has returned to Chelsea after suffering an injury while on international duty with Senegal.
Mendy has enjoyed a meteoric rise to prominence since joining Rennes from Reims in the summer of 2019.
The 28-year-old shot-stopper helped the Ligue 1 outfit qualify for the Champions League for the first time last season, attracting the attention of Premier League giants Chelsea in the process.
The Blues forked out £22 million ($28m) to bring the Senegalese 'keeper to Stamford Bridge on September 24, tying him down to a five-year contract.