Saracens sign Johnston, Vunipola

Saracens have signed Harlequins prop James Johnston and Wasps No.8 Billy Vunipola.

Wasps confirmed Vunipola’s departure on the club’s official Twitter page. “The club has been informed this afternoon that Billy Vunipola has decided to leave at the end of the season.

“We are incredibly disappointed that he has chosen to leave and we will make a full comment on his departure tomorrow,” the club tweeted.

Saracens also announced 12 contract extensions ahead of next season.

"Saracens is pleased to announce a dozen players have committed their future to the club," read a club statement.

"The following players have seen something special happening in north London and agreed new contracts: Richard Wigglesworth, Mako Vunipola, David Strettle, Eoin Sherriff, Will Fraser, Ben Spencer, Nils Mordt, Duncan Taylor, Ben Ransom and James Short.

"In addition James Johnston, tighthead prop, and Billy Vunipola, the No.8, have both signed long-term contracts with Saracens."