IND vs WI: Why is Sai Sudharsan off the field on Day 3 of 2nd Test?

Indian batter Sai Sudharsan sat out Day 3 of the second Test against West Indies as a precaution after an impact injury on Day 2. The BCCI Medical Team confirmed he is "doing fine" following a spectacular short-leg catch. Sudharsan had earlier contributed a valuable 87 runs to India's dominant first innings.