South Africa spinner Robin Peterson is doubtful to feature in their second Test with the West Indies after picking up a finger injury.
Peterson, who was selected as the only spinner in the South Africa squad, sustained the setback during fielding practice ahead of the game, which starts on Friday in Port Elizabeth.
The 35-year-old required three stitches and is now widely expected to be on the sidelines as the Proteas aim to wrap up the three-match series.
"A frontline spinner is very important for this ground," South Africa team-mate Faf du Plessis said.
"We feel for Robbie. He has waited a period of time to make his return to the Test side. Conditions didn't suit in Centurion but here, they are more likely to, so we feel for him that he may be out."
Imran Tahir is viewed as Peterson's likely replacement after being dropped from the squad for this series, although Dane Piedt - who made his Test debut back in August against Zimbabwe - is another option.
Peterson's injury comes on the back of a knee problem that effectively ruled JP Duminy out of the series and an ankle ligament tear suffered by wicketkeeper Quinton de Kock.
While South Africa should be able to cope with those absences for the remainder of the Windies' tour, Du Plessis knows the importance of having a fully-fit squad for 2015.
"You go through cycles of not having any injuries and then all of a sudden you have a few," he added.
"We've been very unfortunate in the last while. We've got quite an important tournament coming up - the World Cup - so we hope that's it for injuries for now."