A goal can only be scored with the caman; there is no goal when the ball "has been kicked, carried or propelled by hand or arm by a player of the attacking side." A goal can not be scored directly from a free-hit. Team size Teams consist of 12 players (men) or 10 players (women), including a goalkeeper. A match is played over two halves of 45 minutes. With the exception of the goalkeeper, no player is allowed to play the ball with his hands. There are also variants with smaller sides, with some adjustments in the field size and duration of play. Substitutions As with sports such as football, shinty originally did not have substitutes. These were introduced in the 1960s, progressively expanding to allow a maximum of three substitutions per game. As of 2011, a rule change allowed for rolling substitutions to be made at senior level. Organisation In common with many sports, it became formalised in the Victorian Era and the first organised clubs were established in cities such as Glasgow and London where there were thousands of Gaels resident. In 1887, a historic game was played between Glenurquhart Shinty Club and Strathglass Shinty Club in Inverness. This game was attended by thousands of people and was a major milestone in developing a set of common rules. This fixture was to be repeated on 12 January 2007 in Inverness as the opening centrepiece of the Highland 2007 celebrations in Scotland, but was postponed due to a waterlogged pitch. The modern sport is governed by the Camanachd Association (). The association came into being in the late Victorian era in as a means of formulating common rules to unite the various different codes and rules which differed between neighbouring glens. Its first meeting was held in Kingussie in 1893. The Camanachd Association maintained its initial structure for much of its first century. The 'Future of Shinty' Report published in 1981 led to a complete restructuring of the way in which shinty was organised and managed. That led to the move away from a dependence on volunteers to govern the sport, to the Association's first salaried employees. Competitions There are shinty clubs in Aberdeen, Aberdour (Fife), Edinburgh, Glasgow, Perth, Cornwall, Oxford and even London. University Shinty is a popular section of the sport, with almost all Scotland's main universities possessing a team. Historically, Glasgow University, Aberdeen University and Edinburgh