South Africa captain Graeme Smith is in doubt for the second test against India starting Sunday, with the visitors needing only a draw to clinch a series victory and reclaim top spot in the world test rankings. Smith injured the little finger on his left hand during catching practice on Friday. A scan showed ligament damage that could threaten his participation in the Eden Gardens test. "There has been considerable swelling," media spokesman Michael Owen-Smith said. "We have to wait for the next 24 hours to see how things are."