Premiership champions Saracens are allowing enough time for lock Maro Itoje to recover from a knee injury sustained in their 30-10 home victory over Bath on Friday.
Saracens face Northampton Saints at Allianz Park in the Championship Cup quarter-finals on Saturday.
The 21-year-old Saracens academy graduate was replaced at the half-time break.
"We're giving Maro as long as we can," Saracens forwards coach Alex Sanderson told Press Association.
"The injury is probably an eight to nine-day lay-off, but he's young and a quick healer so we're hoping he'll come through for Thursday's session."
Saracens are delaying a decision on the final matchday squad in the hope that the towering Itoje will be given the nod.
Sanderson added: "On Thursday we'll see how he's going. If he's fit, we'll play him because he's in outstanding form."
Fellow second-rower George Kruis faces disciplinary charges of an alleged biting incident involving Bath front-rower David Wilson, with the hearing set for late on Tuesday.
The outcome and the wait on Itoje could prove to be costly for the Allianz Park outfit, with Sanderson adding: "Who would want to lose him and George? They're on fire aren't they…the self-proclaimed Saracens Slammers!"