India v England: Zak Crawley says 'you can never write off' Jack Leach

England opener Zak Crawley says "you can never write off" spinner Jack Leach, who is a significant doubt for the second Test against India because of a knee injury sustained in the first Test.

Leach hurt his left knee fielding in Hyderabad, but was still able to bowl 10 overs in the second innings as England sealed a remarkable 28-run win.

He did not bowl in training on Wednesday as England prepare for the second Test in Visakhapatnam on Friday.

READ MORE: India v England: Jack Leach doubtful for second Test in Visakhapatnam