Chennai (Tamil Nadu) [India], September 21 (ANI): Former Indian spinner Murali Karthik revealed on Saturday that the out-of-form Bangladesh all-rounder is suffering from discomfort in his spinning finger and shoulder. The all-rounder bowled seven overs on day three after skipper Najmul Hossain Shanto brought him into the attack, but was hit by Rishabh Pant for six fours and two sixes in a poor spell. This year has been tough for the veteran, having scored just 295 runs in 18 innings across all formats at an average of 19.66, with one fifty. He has also taken just 18 wickets at an average of 39…