Saha sustains finger injury, Pant keeps wickets in final hour
The latest injury adds to the long list of on-field setbacks that Wriddhiman Saha has suffered in his career including a career-threatening shoulder injury.
Saha got hit on his right ring finger when keeping to Ashwin.
Theunis de Bruyn replaced Dean Elgar as a concussion substitute on the third day of the third Test after the latter was felled by an Umesh Yadav bouncer. Elgar, who was batting on 16 in the second innings, was struck flush on the helmet as he took his eyes off the ball.
The opener walked off, at the stroke of tea, and did not come out to bat afterwards. He was "assessed as per standard ICC concussion protocols", a CSA spokesperson stated, before the match referee approved de Bruyn as a concussion substitute.
Wriddhiman Saha, meanwhile, had to walk off after being struck on his right ring finger. The incident occurred in the 27th over, when Saha was keeping wicket to R. Ashwin. Rishabh Pant came on as a substitute.
Saha "is being treated and is doing well", a statement from the Indian team said. He is set to be assessed on Tuesday morning before a decision on his involvement is made.
The first substitute keeper for India was Dinesh Karthik, who replaced Parthiv Patel in the final Test against South Africa in Johannesburg in January, 2018.