It's pretty darn difficult to pull the wool over the eyes of the sporting-mad Sport24 readers, but we're confident we'll have you stumped by the following 10 pictures.

Can you identify these past and present players and administrators when they were much, much younger?

No clues, but the answers will be revealed at 16:00 sharp on Friday, 24 April.

In the meanwhile, jot down your guesses in an email to mysport@sport24.co.za or leave a message on our Twitter page.

Good luck!

1. We're starting off easy. Everyone hopefully has 1/1...

2. Early days and still not too difficult. We hope...

3. Black and white, but we're confident you'll still identify him

4. She's fast. One of the very fastest in fact

5. We're not that cruel. He's still a tennis player today...

6. Starting to get tougher. How much of an all-round sports fan are you?

7. This one may stump a few, but he's hugely popular

8. Bjorn Borg is on the left, but who's the kid on the right?

9. Sudden jump in difficultly. We almost feel bad to posting this one...

10. Give yourself an extra point if you can name this man!