Concussion substitute Tanzid Hasan hammered 84 off 81 balls to help Bangladesh beat Sri Lanka by four wickets in the third one-day international and seal a 2-1 victory in the series on Monday.
Opting to bat first, Sri Lanka posted 235 all out in exactly 50 overs courtesy of Janith Liyanage's 101 off 102 balls for his maiden century.
Soumya Sarkar, who felt neck stiffness and complained of a headache and vision difficulties after his head hit the ground while saving a boundary, was substituted by Tanzid and the replacement proved his worth with an innings laced with nine fours and four sixes to see Bangladesh home with 9.4 overs left.