Formula One: Mercedes motorsport boss Toto Wolff has sold five per cent of his shares in Williams. Brad Hollinger, who is chairman and chief executive of American-based Vibra Healthcare, has purchased the stake, with an option on Wolff’s remaining 10 per cent in the Grove-based marque. Wolff, a former executive director at Williams who bought into the team in 2009, has been looking to sell his shares since purchasing a 30 per cent stake in Mercedes following his arrival in January 2013.

Rugby Union: England retained their IRB Junior World Championship title with a nail-biting 21-20 victory over South Africa in yesterday’s final at Eden Park in Auckland. The defending champions trailed 10-3 after 20 minutes following a try from South Africa back Jesse Kriel but England responded with a brace of scores from Nathan Earle and replacement Joel Conlon to take a 21-13 lead heading into the final 20 minutes. The Junior Boks reduced the deficit to one point with a second try from Kriel but England held out for the final quarter-of-an-hour – surviving a missed drop-goal from South Africa captain Handre Pollard – to reclaim the trophy they won after beating Wales in France last year.

Boxing: World heavyweight champion Vladimir Klitschko will defend his WBA, WBO, IBF and IBO titles against undefeated Bulgarian Kubrat Pulev, in Hamburg, on September 6. Ukrainian Klitschko, 38, has been a heavyweight champion since 2006. He was the 1996 Olympic champion and has an outstanding record as a professional of 52 knockouts in 62 wins. “He (Pulev) has an impressive record as both an amateur and a professional,” Klitschko was quoted as saying. “Pulev has a sophisticated technique and I certainly won’t underestimate him.” The 33-year-old Pulev, who has 11 knockouts from 20 wins, became the IBF international champion in 2011 and European champion in 2012.

Tennis: Marion Bartoli’s first match back on British grass since winning Wimbledon ended in retirement and defeat to a 15-year-old schoolgirl from Surrey – Jodie Burrage. It could not have been more different from the day almost a year ago when she stood on Centre Court holding the Venus Rosewater Dish having achieved her life’s dream. The Frenchwoman retired a month later but accepted an invitation to play in the exhibition Liverpool Hope University International Tennis Tournament at Liverpool Cricket Club. Bartoli was virtually unrecognisable from the player who did not drop a set at Wimbledon last year. She was trailing 7-5 3-2 when she pulled out with a right shoulder problem.

Cricket: Stuart Broad became the first England player to bag two test hat-tricks and Liam Plunkett claimed his maiden five-wicket haul as Sri Lanka were bowled out for 257 on the opening day of the second test. The home side, in reply, reached 36 for nought at the close of play at Headingley yesterday with captain Alastair Cook unbeaten on 14 and Sam Robson 21 not out. Broad became only the fourth player in history to register two test hat-tricks and neither the all-rounder, his team-mates nor the crowd realised it because the first wicket came from the last ball of one over and the second and third arrived from the first and second delivery of the next.