Soccer can be deadly for the referee, as just last month a Soccer referee was killed in Utah, USA after he was punched by a player who was upset with a call... In this case it appears the perp was a mexicoan (based on the name)....
http://www.npr.org/blogs/thetwo-way/2013/05/05/181319373/soccer-referee-dies-one-week-after-being-felled-by-punchA soccer referee who was punched by a player after calling a foul on him during a recreational soccer game in Utah died Saturday night, a week after he was hit once in the face. The suspect, who received a yellow card penalty from referee Ricardo Portillo, was arrested Monday and remains incarcerated, officials say.
The incident seems to have been sparked by a call made by the referee during a corner kick, according to a police report obtained by The Salt Lake City Tribune. Portillo judged that the player, a goalie, had shoved an opposing player; he called a foul on him.
"The suspect was close to Portillo and punched him once in the face as a result of the call. It was initially believed that Portillo had minor injuries as a result of the assault," according to a Greater Salt Lake police release. "However, he was transported by ambulance to Intermountain Medical Center and was found to have serious internal head injuries. He was listed in critical condition."