Saracens produced a dominant display to confirm a home semi-final in the Premiership play-offs after they defeated Harlequins 36-24 at Tottenham Hotspur Stadium.
The Qatar World Cup was the first ever winter edition of the competition – and Argentina ran out winners after a remarkable final against France.
Continental Cup winners Arsenal moved to within two points of Women’s Super League leaders Chelsea.
Farrell’s match was over in the 70th minute when his left ankle rolled while making a tackle close to Saracens’ posts.