Van Rensburg left the field on a medical cart during last weekend’s 25-12 defeat by the Sharks at Ellis Park and was sent for scans on his left knee and ankle.
The incident happened early in the first half with Van Rensburg competing with Sharks fullback Lwazi Mvovo for a ball in the air, Van Rensburg coming down heavily on his knee.
“X-rays, MRI and sonar couldn’t find anything but bone bruising and a strained ligament,” said Van Rensburg on his Facebook page.
The Lions then had to reshuffle their backline with replacement Alwyn Hollenbach being moved to inside centre, Stefan Watermeyer from 12 to 13, and centre Lionel Mapoe to right wing.
To further complicate matters for the Lions, wing Anthony Volmink will also not be considered because of a hamstring injury sustained last week.
But Lions captain Warren Whiteley doesn’t believe the early changes to their back division were disruptive. Rather their inability to convert those half-chances that came their way.
One of those was the “try” by flank Derick Minnie which was disallowed in the 58th minute with the Lions trailing 6-12.
“We were not clinical enough when the team got close to the tryline,” Whitely said.
“But I believed we matched the Sharks for 60 minutes.”
The Lions also found themselves on the wrong end of referee Craig Joubert’s whistle with most of the 50-50 calls going against them.
“Some of those penalties from Francois Steyn were magnificent,” conceded Whiteley.
“Let me give credit to the Sharks for capitalising on our mistakes.”