Recently, Andy Murray clocked up close to 300 laps of the Go-Kart track in Surbiton before heading off to his winter training camp in Miami.
While everyone was fully insured (and are licensed drivers), Andy who doesn't have a driving license still managed to scoop most of the trophies along with Ace Group's Pat Cunningham.
The 21 year-old Scot also talked about being popular among the grannies.
"I get a lot of fan mail and a lot of it is from older people, from 65- or 70-year-olds."
"It's a mixture, but it's surprising that I get so many from grannies and grandpas. They say, 'It's been great to watch you'. It's just very supportive about everything I've done."
Here are some updates of the world no. 1 player Rafael Nadal.
On November 26, Nadal joined the rest of his Spanish team mates in meeting the Prime Minister of Spain Jose Luis Rodriguez Zapatero at the Moncloa Palace, in Madrid after the country's victory at the Davis Cup final.
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On the following day, Iker Casillas and Nadal met to discuss the charity event called 'Friends of Iker vs Friends of Rafa'.
This is the second year of their charity event with the main objective to free the world of malaria. The event will involve both tennis and football, and as an extra treat, a bit of karting action.
All the players have not yet been confirmed but F1 driver Fernando Alonso will definitely be taking part and Casillas and Nadal could not resist taking pops at the other today.
"Rafa has a good pair of feet but he does not have the vision," quipped the Real Madrid goalkeeper before Nadal responded with: "Iker could do with some tennis lessons, I would even give them for free if he wanted.
The event will take place three days after the clash in the Camp Nou on the December 16.
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On Friday, Nadal was a celebrity representative of a vendor at the Moscow Millionaire Fair, an annual event that attracts some of the wealthiest people on the planet.
"Moscow's not like Ibiza, it's a lot colder," Nadal, who traveled to the Russian capital to promote the luxury houses of Ibiza-based Vitaeibiza Homes.
A throng of journalists met Nadal upon his arrival at the Crocus Expo fair complex, where more than 200 Russian and foreign companies have been exhibiting their luxury goods - everything from cars to yachts to helicopters - amid tight security measures.
Nadal was pictured here with Marat Safin in Moscow.
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A biography called Rafael Nadal: The Biography written by Tom Oldfield and published by John Blake Publishing Ltd will be released in early April 2009.
Yesterday Rendy Lu Yen-Hsun was featured on a Taiwanese version of the popular game show 'Are You Smarter Than A 5th Grader'.
The show was know as 百萬小學堂 hosted by the popular Zhang Hsiao-Yen. According to gare315 on menstennisforums, Rendy appeared to be slightly nervous on his debut TV show appearance.
Rendy was said to be able to reach the 7th stage (out of 9 stages) and earn about 10,000 NT dollars.
Fernando Verdasco and Ana Ivanovic were caught on camera while on a shopping spree in Madrid before Davis Cup final.
Looks like the couple were at Hugo Boss getting Nando some suits to wear at the Davis Cup official dinners and receptions.Ana definitely helped pick those suits.