Saracens have announced the signing of James Johnston and Billy Vunipola while ten current players have also extended contracts at the club.
Johnston, who plays tighthead prop, joins from Harlequins and Vunipola, who plays a number eight, will arrive from London Wasps at the end of the season.
The deal for the duo comes on the same day as ten current players have committed their future to Saracens by putting pen to paper on new contracts.
Richard Wigglesworth, Mako Vunipola, David Strettle, Eoin Sherriff, Will Fraser, Ben Spencer, Nils Mordt, Duncan Taylor, Ben Ransom and James Short have all extended their current deals.
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