She had her toughest test so far in this tournament but Serena Williams still pulled away, winning in straight sets over No. 3 seed Agnieska Radwanska 7-6 (3), 6-4 to advance to Sunday’s final against the unseeded Sorana Cirstea.

During the first set of her semi-final matchup tonight, Serena had to take a medical timeout as she was suffering from gastro-intestinal issues. Despite the affliction, Serena was dominant but it is unknown whether this will affect her or not in Sunday’s championship.

Projected as the heavy favourite, Serena Williams really has nothing to lose heading into the final round but given her ultra-competitive nature, don’t expect the American to roll over. After all, her opponent doesn’t have much to lose entering Sunday either as the Romanian Cirstea entered the Rogers Cup unseeded and wasn’t even expected to reach the semi-final let alone the final.

As of July 29, Cirstea is 28th in the WTA rankings and would like to at least give Serena a run for her money and even better, add to her one WTA title to date.

Serena, meanwhile, is simply looking to add yet another title to her Hall-of-Fame resume. If she wins on Sunday, the 31-year-old Serena will capture her third-career Rogers Cup having already won the title in 2002 and most recently in 2009.

On paper, it looks like a mismatch but whether it’s Serena’s gastro-intestinal issues or Cirstea’s hunger to win a title, we should hope for a closer tilt on the court.