Washing Sundar last played for India in the Lord's ODI against England.
The Indian squad includes four players—Nitish Kumar Reddy, Jasprit Bumrah, Washington Sundar, and Harshit Rana—with the condition of being subject to fitness.
Srikkanth talked about Sundar’s inclusion, who had suffered a hamstring injury during the third ODI against England and has since been at the Centre of Excellence (COE) for his recovery.
"He is good in Tests but didn't play in Sri Lanka. How is he fit now in two weeks? He has not proved his match fitness, so what is the use? You must play some matches at some level to show your fitness before being picked for India. You can't just play with a doctor's certificate. Washington Sundar seems to be injured after every two or three series," Srikkanth said on his YouTube channel.
The former India captain believes Sundar has lost his rhythm in the shorter format following a challenging run against Ireland and England, even if he acknowledges the all-rounder's remarkable adjustment to Test cricket.
"He was smashed in Ireland and England. He started his cricket in the T20 format. He moved brilliantly to Test cricket, but he has lost his rhythm in white-ball cricket," he added.
Srikkanth also weighed in on Nitish Kumar Reddy’s fitness situation and stated that he’d prefer the Andhra cricketer over Shivam Dube if he can prove his fitness.
"If Nitish Kumar Reddy proves his match fitness, I'll go with him over Dube. But now there is no time for him to prove his match fitness. What match can he play now before the Afghanistan series? It's always better to prove your fitness by playing a match over a doctor's certificate. Anyone can get a doctor's certificate like we used to for leaves in school," said Srikkanth.
India will play three T20Is against Afghanistan on September 12, 15, and 17 in Delhi.