Liam Rosenior has thrown his support behind Mamadou Sarr after the defender’s high-profile error during Chelsea’s Champions League exit against Paris Saint-Germain. The Blues boss insisted the experience will be the making of the 20-year-old.

Chelsea and Paris Saint-Germain have a rather unique cross-border rivalry. Its roots stem way back into the 2010s, long before their summer 2025 meeting in the Club World Cup final, but that served to only intensify the dislike between these current sets of players. In the United States, the Blues crowned themselves as 'champions of the world', but it's a title that looks more and more hollow as we distance ourselves from that tournament.

Chelsea's Champions League campaign came to an end with a whimper after losing 3-0 to Paris Saint-Germain in the second leg of their last-16 tie, falling to an 8-2 defeat across 180 minutes of action. The aggregate defeat is the Blues' heaviest in their history of competing in the knockout stages of the European Cup, equalling their 7-1 hammering by Bayern Munich in 2020.

Chelsea are set to execute a complex triple transfer shuffle with sister club Strasbourg as the January window reaches its climax. The Blues have decided to recall highly-rated defender Mamadou Sarr, viewing him as a key part of their long-term project. In a direct exchange of resources, Argentinian prospect Aaron Anselmino and striker David Datro Fofana will head to France on loan for the remainder of the campaign to aid the Ligue 1 side.