The pair welcomed their first child Robert back in 2018 via surrogate and yesterday announced that their family had "grown".
Phoenix Rose Black-Daley was born on March 28 and the famous couple say the little lad is "just perfect" in a new post.
Sharing a sweet family snap as Tom introduced Phoenix to their first-born Robbie, fans gushed over the couple's new kid.
Tom wrote: "Our family has grown in the last week.
He added: "We welcomed Phoenix to the world on 28/03/23 and he’s just perfect. Robbie is loving being a BIG BRO!"
Tom's Olympic diver co-star Matty Lee commented: "Can’t wait to meet him! Love you all."
While the official Team GB account said: "Massive congratulations to you and the family!"
Noting one aspect in the picture, presenter Matt Baker commented: "Welcome to the world PhoeniX loving his first jumper!"
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