Triathlon's popularity seems to be growing at a phenomenal rate and that also includes in the celebrity world. Last month we brought you the news that following the birth of her twins early this year, Jennifer Lopez would be taking part in her first triathlon, in September. Now, former number eight in the world tennis star, Anna Kournikova, has also joined the ranks of an ever increasing list of celebrities taking part in triathlon.

Along with Chris McComack and Leanda Cave, who raced in the main event (full report and results here) Anna took part in the Nautica South Beach Triathlon as part of a celebrity relay. She was in good company, her other team members were pretty good athletes in their own right too. The half a mile swim leg was swam by four-time Olympian Dara Torres, Dara is attempting to become the first mother to make a fifth Olympic swim team at the age of 41. Katja Meyers, a top five Ironman finisher, who also works as a model, took control of the 18mile bike leg, followed by Anna, who ran the final leg of the relay, a four mile run. Anna's team , the Toyota Dream Team, finished in 1:32:25, Anna's time for the four mile run was 28:59

Anna spoke about her race the week before the event:

"I am running in a triathlon on South Beach on Sunday the 13th April. K-Swiss is one of the sponsors of the triathlon, and I am running four miles of the race, and all proceeds will benefit St. Judes Children's Hospital. After the race I'm going to be at the K-Swiss tent on the Beach signing autographs and doing some meet and greets, and then in the evening I'll be at a K-Swiss sponsored cocktail party on a yacht in Miami Beach. I can't wait to get to the beach and run outside, although I am not too excited about having to get up at 5am."

Anna who was slightly winded when finishing the four mile had this to say about her triathlon experience:

"It was really cool," Kournikova said. "I am a little out of breath, sorry. I was expecting nothing really because I was sick a week or two ago.

Perhaps Anna won't be rushing to do a full triathlon in the near future, but who knows, she certainly looked the part!