Chelsea goalkeeper Thibaut Courtois has not reported for training for the second day in a row, according to Sky sources.
Courtois was due for talks with Chelsea head coach Maurizio Sarri on Monday.
Sarri said after the Community Shield defeat by Manchester City on Sunday he wanted to see Courtois face to face after his agent said last week he wanted to leave Chelsea and join Real Madrid.
Speaking on Sunday, Sarri said: "I want only players with a high level of motivation. I don't have an answer for the agent."
Courtois, 26, has regularly addressed his desire to return to Madrid, where he previously played for Atletico and where his two children live with his former partner.
Chelsea's other World Cup stars Eden Hazard, also linked with Real Madrid, N'Golo Kante, Olivier Giroud, Gary Cahill and Michy Batshuayi did return to the Cobham training ground on Monday as scheduled.
Sky Sports News understands Chelsea have made Jack Butland their top target to replace Courtois if he leaves before Thursday's transfer deadline.