The second Rooney son's rare name has left many guessing the inspiration. Can it really be a Liberian town, radio station or sports club?
Wayne Rooney will miss Manchester United's final game of the season at West Brom.
Wayne Rooney will be on Manchester United's bus parade this evening with messages of caution about his future plans getting ever louder.
Coleen Rooney has tweeted a picture of her second son Klay, who was born earlier today.
Coleen Rooney's mother Colette Mcloughlin has arrived at Liverpool Women's Hospital to greet the family's new arrival.
Accompanied by Wayne and Coleen Rooney's now-eldest son, three-year-old Kai, she brought in balloons to celebrate the birth of Klay.
Wayne Rooney missed Manchester United's last game of the season against West Bromwich Albion on Sunday to be with his wife as she prepared to give birth to their second child.
Coleen Rooney, wife of footballer Wayne Rooney, has tweeted to say that she has given birth to her second child, Klay Anthony Rooney.
Already mother to three-year-old son Kai, she said the family was "happy and doing well".
At 2.11am our Beautiful Son .... Klay Anthony Rooney entered the world. He weighed 7Ib 11.1/2 oz We're all so happy and doing well. XFrom @ColeenRoo on Twitter:
Wayne Rooney also tweeted, to say the whole family was "delighted".
Our Beautiful Son Klay Anthony Rooney was born at 2.11am, Weighing 7Ib 11.1/2 oz. Both Klay and Coleen are fine..... We're all delighted!!From @WayneRooney on Twitter: