David Isaacson, who'll be our man in Rio, brings you the lowdown on what we can expect from Team SA as they go through their final preparations ahead of the Brazil showpiece Two cousins who played rugby together in junior school more than a decade ago are reuniting as Olympic teammates.Wayde van Niekerk and Cheslin Kolbe used to earn extra pocket money when their coach at Simonsberg junior school offered them R5 for every try.Now they are chasing gold at the Rio Olympic Games next month, Van Niekerk on the athletics track and Kolbe with the Sevens rugby side.story_article_left1The schedule favours Kolbe to reach the podium first.The BlitzBoks compete from August 9-11 and world 400m champion Van Niekerk is set to be in action from August 12-14.South African Sports Confederation and Olympic Committee (Sascoc) president Gideon Sam initially targeted 16 medals for 2016 - keeping his 12 for 2012 theme - but he has revised his prediction twice since then, first to 12 and then 10.To ensure Team SA is properly armed for battle, Sascoc will cart over excess baggage totalling about one ton, an official estimated this week.Each Rio Olympic medal weighs 500g, or 5kg for 10 medals.Ten medals would surpass the six achieved twice since readmission, in London four years ago and at Athens 2004. And it would equal the country's best-ever hauls, achieved twice in distant history, at Antwerp 1920 and Helsinki 1952.The Sunday Times believes Team SA has the potential to land between eight and 11 medals.Here are the contenders:Wayde van Niekerk - 400mThe 400m world champion's 43.48sec last year was the fastest time since 2007.Chad Le Clos - 200m butterfly, 100m butterfly, 200m freestyleThe two-time 100m fly world champion and reigning Olympic 200m fly champion is ranked a lowly 30th in the 200m freestyle. Then again, he was 35th in the 100m fly ahead of London 2012, where he took silver.Caster Semenya - women's 800m, 400mSemenya has entered both 400m and 800m in Rio, according to Sascoc. She needs a massive personal best to get a 400m medal, but 800m glory seems a certainty.Cameron van der Burgh - 100m breaststrokeThe Olympic champion was runner-up at the past two world championships. Always tough to beat.Ursula Grobler and Kirsten McCann - women's rowingA world force in the women's lightweight double sculls, they could be SA rowing's best chance of gold.Blitz Boks - sevens rugbyThey stunned New Zealand to win the 2014 Commonwealth Games gold medal in Glasgow, where there was no Fiji. With the minnows rising, this will be a tough one.Sunette Viljoen - women's javelinWent to London 2012 as the favourite and ended fourth. This year she has been reasonably consistent, tailing off recently.James Thompson and John Smith - rowingMembers of the golden lightweight fours at London 2012, they are always rugged competitors.Ruswahl Samaai - long jumpHe surprised with bronze at the 2014 Commonwealth Games, but he's somebody to watch in Rio. Loves to fight in competition.story_article_right2Shaun Keeling and Lawrence Brittain - rowingSeeded fourth, they're getting stronger all the time. Brittain, a cancer survivor who returned to training early last year, could be one of the stories of the Games.Ashleigh Moolman-Pasio - women's road cyclingEnded third at the 2014 Commonwealth Games despite riding on her own. Rio will be even tougher, but if the stars align she could pounce.Richard Murray - triathlonIs coming back strong after a bad crash in April. Has the right attitude to do the impossible.Anaso Jobodwana - 200mThe world championship bronze medallist behind Usain Bolt and Justin Gatlin hasn't raced this year because of injury. He's doing well, but is untested so far.There are other medal hopes too, like cyclists Daryl Impey and Louis Meintjies in the men's road race on the opening day of the Games; London bronze medallist Bridgitte Hartley in canoeing; 400m hurdler LJ van Zyl; Christopher Reid in both the 100m backstroke and 4x100m medley relay; a golfer or two; and, if the winds of fortune blow for them, sailors Roger Hudson and Asenathi Jim in the 470 dinghy class.Hudson, at 38, is the oldest member of Team SA. The youngest is Banyana player Linda Motlhalo, who turned 18 on July 1.sports@timesmedia.co.za..