CENTURION (South Africa) (AFP) Indian Premier League teams flexed their muscles during the first weekend of the Champions League Twenty20 tournament in South Africa with Chennai Super Kings and Royal Challengers Bangalore recording emphatic wins. Chennai defeated New Zealands Central Stags by 57 runs in Durban Saturday while Bangalore crushed West Indian champions Guyana by nine wickets in Centurion Sunday. The tournament features teams from six countries but after the first five matches it seemed the major challenges for the lucrative title would come from India, South Africa or Australia. South Africas Highveld Lions and Warriors recorded the first two wins but the Lions suffered a loss in their second match when they went down by 11 runs against South Australia Redbacks in the first game of a SuperSport Park double-header Sunday. A second Australian team, Victoria Bushrangers, are the only side not to have been in action. They open their campaign against the Warriors in Port Elizabeth Monday.