Fans saw them win in straight sets 6-4 6-1 at Centre Court on Saturday when they faced Alexa Guarachi and Andreas Mies.
Following their first win, Serena told reporters that she had one stipulation when agreeing to be his partner, saying: I always play the forehand side. If you want to play with me, I play forehand. Its just the only rule I have.
When are Andy Murray and Serena Williams playing at Wimbledon?
Andy Murray and Serena Williams will be playing together in the second round of the mixed doubles this afternoon.
Their match is set to begin at around 15.30 on Tuesday 9 July, although the start time can vary depending on the length of the previous match.
They will be playing on Centre Court against Raquel Atawo and Fabrice Martin, and a win would see them face Bruno Fraga Soares and Nicole Melichar in the third round.
Serena Williams is also still competing in the womens singles tournament at Wimbledon.
This means that she will be taking part in two matches today, with her first being the womens singles quarter final match against Alison Riske at 13.00.
Serema has been given