(Previously, a replacement was allowed and a penalty was only awarded if the incident happened in the penalty area.) A yellow card now means a 15-minute sin bin for the offending player, who will be sent off if he receives a second card. Further alterations were made before the 2008 International Rules Series: Maximum of 10 interchanges per quarter. Teams are allowed only four consecutive hand passes (ball must then be kicked). The goalkeeper can no longer kick the ball to himself from the kick-out. Suspensions may carry over to GAA and AFL matches if the Match Review Panel sees fit. A dangerous "slinging" tackle will be an automatic red card. A front-on bump (known as a shirtfront in Australian football) endangering the head will result in a red card. Physical intimidation can result in a yellow card. The keeper cannot be tackled or touched when the keeper is charging. An independent referee can cite players for reportable offences from the stands. Yellow card sin bin reduced to 10 minutes. The most recent changes were made ahead of the 2014 International Rules Series: Maximum number of interchanges per quarter increased from 10 to 16. Unlimited number of interchanges allowed at quarter and half time breaks. Number of consecutive hand-passes teams are allowed increased from 4 to 6. Marks will not be paid for backwards kicks caught by a teammate. Goalkeepers required to kick the ball out beyond the 45 m line after all wides, behinds and overs. Failure of a goalkeeper to kick over the 45 m line will result in a free kick to the opposition (from the 45 m line). Around the world International rules has been played in various locations throughout North America and the Caribbean, Europe, Asia, and Australia and New Zealand between fledgling Australian rules football and Gaelic football clubs. In 2006, an exhibition match between South African youth teams and an Indigenous Australian touring side composed of players from the Clontarf Foundation, led by Sydney's Adam Goodes, was held at Potchefstroom. The University of Birmingham holds an annual International Rules match between its Australian Rules football team and its Gaelic Football team, with the 2013 edition won by the Australian Rules team 56–55, before a crowd of over 400 students. In the International Rules Series, the most well-known International Rules event, Australia and Ireland are at an impasse, with 10 series wins apiece. Most