The International Football Association Board has approved some rules changes for this year's World Cup in Germany, including sending off players who elbow or tackle opponents recklessly.
The IFAB, meeting in Lucerne, Switzerland, also approved yellow cards for players who pull an opponent's shirt or otherwise hold opposing players. The modifications will apply at the World Cup, which starts June 9n and runs through July 9.
The IFAB also agreed to further testing for goal line technology to determine whether a goal has been scored. Football officials have been experimenting with microchips in footballs and digital cameras in goalposts to determine if a ball has crossed the goal line.
The board also said that players' uniforms must be made of separate pieces - shorts, shirts, socks and shoes - instead of the so-called "unikit" one-piece uniform that Cameroon wore in the 2004 African Cup of Nations.
The IFAB is made up of representatives of four British federations and FIFA. The next IFAB annual meeting is March 4, 2007 in Manchester, England.
Some information for this report provided by AP.