Thibaut Courtois' future at Chelsea appears more uncertain after it was reported that the goalkeeper had failed to turn up for training for a second day running.
The 26-year-old, who has been heavily linked with a move to Real Madrid, was handed an extended holiday after finishing third at the World Cup with Belgium.
However, Courtois was expected to return to the Blues' Cobham training base on Monday, but did not attend.
Reports suggested he was also absent on Tuesday, having told new manager Maurizio Sarri he wanted to leave the club before Thursday's transfer deadline.
Should Courtois - signed from Genk in July 2011 before spending a three-season loan spell with Atletico Madrid - not resume training with the London club, he is likely to face an internal disciplinary meeting and the potential of a fine of up to two weeks wages.
The likes of Athletic Bilbao's Kepa Arrizabalaga, Jan Oblak of Atletico Madrid and Stoke's Jack Butland are potential replacements should Courtois depart, but all parties are up against the transfer deadline to get any potential deals completed.
Chelsea, meanwhile, could also be set to make another addition to the squad with a loan deal for midfielder Mateo Kovacic from Real Madrid
Chelsea will open the new Premier League campaign at Huddersfield Town on Saturday.
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