Biggar will finish his 18-year career with French club Toulon, who he joined in November 2022.

He won 112 caps for Wales in a 15-year Test career and scored more than 600 points. His final appearance was at the 2023 Rugby World Cup.

He won three Six Nations titles and a Grand Slam with Wales and was captain during the Wayne Pivac era.

Biggar went on two British and Irish Lions tours, making three Test appearances in South Africa in 2021.

"There comes a point where you just know, not because of anything in particular, but someone once said to me when you know, you'll know," Biggar said as he announced his decision on social media.

"Rugby has given me everything. I threw myself into this game at 17 and it's given me a life that I could never have imagined.

"I've lived out my childhood dreams for the best part of two decades and I'm so so grateful for that."