Ailing Serena battles on to set up Safarova finalserena_williams_unwell_paris_open_2015_reuters.jpeg

Serena Williams did not smile, celebrate or even acknowledge the standing ovation she was receiving from the roaring crowd as she watched Timea Bacsinszky's backhand float out on match point at the French Open yesterday. Instead, the pained expression on the ailing American's face spoke volumes about what she must have been thinking – “Thank...