New York: Tennis ace Caroline Wozniacki was greeted at the finish line of Sunday's New York Marathon by friend and World No 1 Serena Williams.


I've done it: Tennis star Caroline Wozniacki (in pink) is all smiles as she approaches the finish line of the New York Marathon on Sunday. Wozniacki clocked three hours, 26 mins for the 42-km race. Pic/AFP 

The American was in fact, in tears as her best mate crossed the finish. Williams later tweeted: "Is it normal to cry when someone finished marathon? I'm so proud of you caro @CaroWozniacki."