Uncapped seamer Dane Paterson has replaced Vernon Philander in South Africa's squad for the first Test against Pakistan.
Philander was ruled out due to a fractured finger after the Proteas had already lost paceman Lungi Ngidi to a knee injury.
Paterson has been called up for the opening encounter of the three-match series at Centurion, which starts on Boxing Day.
Cricket South Africa's selection convener Linda Zondi said of the 29-year-old: "We have been looking at him for some time.
"He is a bowler who has performed on the domestic scene consistently for a long time and he will be our back-up for the first Test."
Paterson has played three one-day internationals and eight Twenty20s for his country but has not yet been given his chance in the longest format.