Liam Williams has left Saracens to join the Scarlets with immediate effect and his Wales team-mate Rhys Webb has signed for Bath for the rest of the season.

It was announced in December that British and Irish Lions full-back Williams will return to his homeland for a second spell with the Scarlets at the end of the current campaign.

Williams, who has not played since the Rugby World Cup due to an ankle injury, has been cleared to leave the European and Premiership champions earlier than initially planned, bringing to an end a hugely successful spell in London.

The 28-year-old won two Premiership titles and the European Champions Cup during his two-and-a-half year stay with Sarries, who will play in the Championship next year due to salary-cap breaches.

Scarlets head coach Brad Mooar said: "Liam is a world-class player and man, a huge favourite at Parc y Scarlets and we are thrilled to welcome Liam and Sophie back to the Scarlets.

"To have Liam joining our exciting group of outside backs this season is superb. I’m also thrilled for Liam that his rehab is almost complete. 

"Obviously, his immediate availability for us will depend on how Wayne wants to play it during the Six Nations and we look forward to seeing Liam back at Parc y Scarlets in due course."

Webb will spend the remainder of the 2019/20 campaign with Premiership side Bath ahead of a move to Ospreys.

The scrum-half was granted an early release from his Toulon contract at the end of last year and agreed to rejoin Ospreys on a two-year deal.

Webb, who made his Wales comeback in the Six Nations defeat of Italy this month, could make his debut in the derby against Bristol Bears on March 1.