MEN’S RUGBY UNION: The Under-20s World Championship continues in Georgia on Thursday with defending champions South Africa looking to follow up their 104-7 mauling of Uruguay when they take on the hosts in Tbilisi.Wales are up against Uruguay while last year’s runners-up New Zealand take on Scotland, with both teams having won their opening games.Ireland, who lost 34-27 to England in Group C, face Argentina while the English play the USA.