Mako Vunipola was withdrawn from Saracens' 40-19 rout of Harlequins at Wembley as a precautionary measure, according to director of rugby Mark McCall.
Mako Vunipola was withdrawn from Saracens' 40-19 rout of Harlequins at Wembley as a precautionary measure, according to director of rugby Mark McCall.