The sports star, nicknamed The Hitman, took to his Twitter.com page on Sunday (20Jan13) to announce the happy news his partner Jennifer is expecting their second child.
The tot will be a sibling to the couple's daughter Millie, who was born in September 2011. Hatton also has another son, called Campbell, from a previous relationship.
The dad-to-be tweeted, "Proud to say Jennifer is pregnant (with) our second child together. If this little one is half as good as Millie Meg & Campbell we'll be very happy."