Tennis stars Steffi Graf and Andre Agassi have confirmed press reports that they are expecting a baby.Steffi Graf expects to give birth in mid-December.

"This is a very exciting time for us," said Agassi. "We are so happy to have been blessed with this gift."

Graf, 32, and Agassi, 31, have been together since 1999, and this will be the first child for both of them.

They have both spoken of their love of children.