While referee Ling pointed to the centre spot, linesman Griffiths signalled offside. This came after both the linesman and referee had initially signalled a goal. When the NFL began play, only three officials (referee, umpire, and head linesman) were used. Linesman Kalfoglou failed to indicate that the scorer was in an offside position. Penalties are called and enforced by the referee, or in some cases, the linesman. Another less commonly used system is the two referee and one linesman system. The combination of referees and linesman varies from league to league. He went back after the goaltender before a linesman tackled him. The kick injured the linesman and drew blood. Also killed was one ground crewman, the civilian linesman Allen Hagaman. Dale Hamer and Gary Lane returned to head linesman and side judge, respectively. When icing occurs, a linesman stops play. After the linesman clarified the shot was good, Wills broke Lenglen to level the set. Their task is to make judgements on line calls, similar to a soccer linesman. The homestead was originally managed by Alfred Giles, an ex-Overland Telegraph linesman.