Caulker has been receiving treatment for a hip injury back at his parent club.
Robins boss Keith Millen hopes the centre-half will be involved in the team`s preparations for the game at Norwich on Monday evening.
"He`s not back with us yet as Tottenham continue to look after him," Millen told the club`s official website.
"We should have him back for training on Saturday ready to prepare for the Norwich game."
Source: PA
Source: PA