By GARY FITZGERALD

Seeing Billy and Mako Vunipola battle their way back into Eddie Jones’ good books has encouraged Ivan van Zyl to keep his own World Cup hope alive.
And the South African intends to “kick on” now that he feels very much at home in north London in a bid to prove to the Springboks he deserves a call up before France next year.
Van Zyl enjoyed his first season in the Premiership, helping Saracens reach a Twickenham final and finding out what is needed to thrive in his vastly different rugby surroundings.
However, the 27-year-old knows he must now prove to director of rugby M...