Scrum (rugby) the players who are designated forwards binding together in three rows. The scrum then 'engages' with the opposition team so that the players' heads are interlocked with those of the other side's front row. In rugby union the initiation of the process is verbally coordinated by the referee who calls 'crouch, bind, set' as of 2013 (formerly 'crouch, touch, pause, engage', 'crouch and hold, engage' before 2007). The scrum-half from the team that did not infringe then throws the ball into the tunnel created in the space between the two sets of front rowers' legs. Both teams may then try
Laws of rugby union with all the other players in the scrum binding to the locks. The referee makes a mark where the scrum is to be formed and waits for both teams to bind together. The referee then calls "crouch" (both front rows must crouch down) "touch" (the props touch each other's shoulders) "pause" and then "engage". However, a shortened sequence is currently being trialed in which the referee calls "crouch" (both front rows must crouch down) "Bind" (the props secure binds on each other's shoulders) and then "Set" at which point both packs rows engage. When engage (or set) is called the