Check out this clip to see Leah meeting two Wimbledon tennis stars, Anna Kournikova and Martina Hingis!
Hingis is a former Wimbledon singles champ and has appeared on Strictly Come Dancing!
And Anna Kournikova is going out with pop singer Enrique Iglesias.
They tell Leah all about what it's like to be a grand slam winning doubles team!
If you like this then check out Sportsround at 6.30pm on Fridays on the CBBC Channel.
If you miss it, or really liked it the first time, you can watch it again at 7.25am on Saturday on BBC2.