Wasps could be without both Kieran Brookes and Tom Willis to face Worcester Warriors on Saturday at the Ricoh Arena, confirms coventrytelegraph.
Both forwards were replaced at either end of the first half due to injuries in Wasps' 48-46 defeat to Harlequins.
"We're just going day-by-day so I can't give you a timespan on it but, he'll be touch-and-go," said Wasps boss Lee Blackett.
"We'll see whether we can get him to this weekend or not. So, he's definitely not ruled out at this moment in time, but we'll see."
Blackett confirmed both Jack Owlett - who joins Worcester this summer - and Biyi Alo - who lists the Warriors among his former clubs - are available for selection if Brookes is unavailable.
Tom Willis suffered a head injury that prompted a head injury replacement shortly before half-time but the number eight did not return to the match.
"He's just got to pass everything to get to the weekend," said Blackett.
Hooker Tom Cruse suffered a setback from his recovery from a calf injury that has seen him miss seven games and is still 'a couple of weeks away still'.
Full injury report via coventrytelegraph