Rally superstar Sebastien Loeb has become the third man into the semi-finals in our quest to find the Greatest Sportsman in the world.

The Frenchman came second with you readers in our latest poll (25%) and was the top choice with our panel of experts, which saw him edge out Kaka, Kenenisa Bekele, and Richie McCaw.

You the readers felt that Kaka should have progressed as you gave him 56% of your votes, but he was only third with the experts behind Loeb and Bekele.

Richie McCaw was a distant fourth in both polls leaving Bryan Habana as the sole rugby representative left in the competition.

This week we have a really intriguing mix of sport stars competing for a place in the next round.

Roger Federer (Tennis); Floyd Mayweather (Boxing); Ole Einar Bjoerndalen (Biathlon); and Ivano Balic (Handball) are all hoping to move into the next round.

Why not join thousands of others and vote for your favourite via the poll on our homepage? To help you make your choice, you can read bios of the latest four contenders by clicking on the link below the picture.

So what is "The Greatest"?

It is eurosport.yahoo.com's quest to find the greatest sportsman in the world today and we need your help.

We have selected 32 of the greatest athletes in the world to contest the honour and they have been randomly drawn into eight groups of four.

Half of the votes will be decided by the results of our online poll and half by our panel of experts.

And in the great tradition of reality TV shows, in the case of a tie you get the final say.

The winner of each of the eight pools will go into the semi-finals with the winners of those two subsequent groups going into the head-to-head final.

Meet our team of experts:

Gary Imlach - presenter of ITV's coverage of the Tour de France; Channel 4's coverage of the NFL; Eurosport's coverage of the African Nations Cup and winner of the 2005 William Hill Sports Book of the Year award.

Simon Reed - commentated on the last seven Wimbledon Championships for the BBC as well as cricket for Sky Sports plus tennis and ice skating for Eurosport.

Mr Ed - Eurosport-Yahoo's managing editor gets a vote - after all it was his idea.

Their votes for each group have been put in a sealed envelope so not to be influenced by the poll result and paradoxically their decision will not be revealed until each Wednesday morning when the poll ends and the winner is unveiled.

Here's the draw:

Group A: Ronaldinho (Football) (Winner: Poll: 42%; Experts: 2nd) ; Thierry Henry (Football) (Out: Poll 37%; Experts: 4th); Robert Scheidt (Sailing) (Out: Poll: 4%; Experts: 1st) Steve Nash (Basketball) (Poll 16%; Experts 3rd).

Group B: Cristiano Ronaldo (Football) (Out: Poll 56%; Experts: 4th); Ricky Ponting (Cricket) (Out: Poll 6%; Experts 1st); Dan Carter (Rugby) (Out: Poll 5%; Expert 3rd); Ronnie O'Sullivan (Snooker) (Winner: Poll 34%; Experts 2nd)

Group C: Kaka (Football) (Out: Poll 56%; Experts: 3rd); Richie McCaw (Rugby) (Out: Poll 4%; Experts: 4th); Sebastien Loeb (WRC) (Winner : Poll 25%; Experts 1st); Kenenisa Bekele (Athletics) (Out: Poll 15%; Experts 3rd)

Group D: Roger Federer (Tennis); Floyd Mayweather (Boxing); Ole Einar Bjoerndalen (Biathlon); Ivano Balic (Handball)

Group E: Lionel Messi (Football); Valentino Rossi (Moto GP); Tyson Gay (Athletics); Kobe Bryant (Basketball)

Group F: Michael Phelps (Swimming); Thomas Morgenstern (Ski Jumping); Tom Brady (NFL); Giba (Volleyball)

Group G: Tiger Woods (Golf); Jeremy Wariner (Athletics); Chris Hoy (Cycling); Peyton Manning (NFL)

Group H: Fernando Alonso (Formula One); Muttiah Muralitharan (Cricket); Bryan Habana (Rugby); Sidney Crosby (NHL)

It's not about how popular the sports are but more of a reflection on what each individual brings to his respective sport - in terms of domination, entertainment and longevity.

Is Ronaldinho's contribution to football since the millennium worth more than Lionel Messi's value today? Is Ole Einar Bjoerndalen more talented that Kaka?

You decide!

So get voting on the home page poll right now and to help your choice, remember there is a bio of each the Group D contestants available by clicking on the link under the photo.

Eurosport