With the unique format at the WTA Finals, it is all about how you finish rather than how you start as new champion Agnieszka Radwanska proved this week.
Maria Sharapova made light of her long injury layoff by advancing to the last four of the WTA Finals with an unbeaten record in round robin play after the Russian breezed past Flavia Pennetta 7-5 6-1 on Thursday.
Simona Halep's roller-coaster season came to a welcome halt on Thursday when a crushing first set tie-breaker against Agnieszka Radwanska at the WTA Finals.