Bec and Lleyton Hewitt have welcomed the birth of their first child, a girl.

"Lleyton and Bec Hewitt are pleased to announce the overnight arrival of their first child, a healthy baby girl," publicist Rob Aivatoglou said today.

Insiders say the baby girl will be named Lleyton Hewitt II. Lleyton Snr is reported to have said "It seemed cruel not to pass on such a great name to my child. Being named after an iconic Australian legend is an honour I wanted to give to Lleyton Jnr."

"We look forward to having a large family when Lleyton III, IV, V come along. Who knows we may even go for Lleyton VI!", said a proud father.