British and Irish Lions head coach Warren Gatland has suggested that Jamie Roberts has suffered a torn hamstring during his side's win over the Waratahs.
Gatland has admitted that he is in the dark in terms of the extent of the injury following the Lions' 47-17 win in Sydney.
"It looks like he has torn a bit of a hamstring but I am not 100% sure," Gatland told Sky Sports News. "I'll check with the medics about that.
"Hopefully it is not that bad. We have had a couple already so we will have to wait and see when I get in the changing rooms and talk to the medics."
The Lions take on Australia in their first Test on June 22.
