Ghana's number one central defender John Mensah is in doubt for the upcoming World Cup.
The 27-year old Sunderland centre-half was forced from the pitch in the weekend's 1-0 home loss to Manchester United with a back-related hamstring injury and may require surgery.
Despite the problem, Mensah said he would be right to take his place in the Black Stars squad for South Africa but may have surgery following the tournament.
"If there will be any surgery at all it has to wait until after the season and the World Cup," he told Graphic Sports.
"I'm fully fit now and I want to help Sunderland in the last game against Wolverhampton and then switch attention to the World Cup."