England's spin-bowling coach Jeetan Patel revealed that left-arm spinner Jack Leach aggravated his knee injury during the second day of the first Test against India on Friday here in Hyderabad. Leach who is the most experienced spinner among the four injured his knee while trying to save a boundary on day one. He aggravated his injury on the morning of the second day. As a result, Leach just bowled 16 overs out of 87, bowling at most four overs in a spell and also leaving the field to receive treatment. "He banged his knee last night, the first dive down at fine leg. Then he banged it again today and it's giving him a little gyp, to be honest. You noticed in the outfield he was a little sluggish trying to get to balls, but he stuck at it and I thought he actually bowled really, really well considering," Jeetan said, as quoted from ESPNcricinfo. "It must be pretty serious, or serious for him anyway, because the reality is he wouldn't shirk that responsibilit