India's Saina Nehwal returns to Japan's Nozomi Okuhara during their BWF World Championships semi-final match in Glasgow on Saturday. Pic/AFP

While India's badminton ace Saina Nehwal was sweating her way to a World Championships bronze medal in Glasgow, one man was closely monitoring her every move on TV here in Mumbai with his laptop in front of him, noting down facts and stats. Heath Mathews, head of sports medicine at Sir HN Reliance Foundation Hospital here, was even proudly smiling in between those frantic notations.