Question: What sport does Etric Pruitt and Marquand Manuel have in common?

Context articles: List of international sports federations
Marquand Manuel
Motorcycle stunt riding
Concussions in Australian sport
Ejection (sports)
Names of Australian rules football
Etric Pruitt
Pyreliophorus
Canadian Cutting Horse Association
Manuel Gourlade

This is a list of international sports federations, each of which serves as a non-governmental governing body for a given sport and administers its sport at a world level, most often crafting rules, promoting the sport to prospective spectators and fans, developing prospective players, and organizing world or continental championships.
 Some international sports federations like the International Swimming Federation and the International Skating Union may oversee multiple activities referred to in common parlance as separate sports: FINA, for example governs swimming, diving, synchronised swimming and water polo as separate 'disciplines' within the single 'sport' of Aquatics.
Marquand Alexander Manuel (born July 11, 1979) is an American former college and professional football safety who played in the National Football League (NFL) for eight seasons.
 Manuel played college football for the University of Florida.
 The Cincinnati Bengals picked him in the sixth round of the 2002 NFL Draft, and he also played for the NFL's Seattle Seahawks, Green Bay Packers, Carolina Panthers, Denver Broncos and Detroit Lions.
 He is currently the defensive coordinator for the Atlanta Falcons.
Motorcycle stunt riding, often referred to as stunting, is a motorcycle sport characterized by stunts involving acrobatic maneuvering of the motorcycle and sometimes the rider.
 Common maneuvers in stunt riding include wheelies, stoppies, and burnouts.
 Sport bikes have become a common vehicle for stunts.
Head injuries in sports of any level (junior, amateur, professional) are the most dangerous and sickening kind of injuries that can occur in sport, and are becoming more common in Australian sport.
 Concussions are the most common side effect of a head injury and are defined as "temporary unconsciousness or confusion and other symptoms caused by a blow to the head."
 A concussion also falls under the category of Traumatic Brain Injury (TBI).
 Especially in contact sports like Australian rules football and Rugby issues with concussions are prevalent, and methods to deal with, prevent and treat concussions are continuously being updated and researched to deal with the issue.
 Concussions pose a serious threat to the patients’ mental and physical health, as well as their playing career, and can result in lasting brain damage especially if left untreated.
 The signs that a player may have a concussion are: loss of consciousness or non-responsiveness, balance problems (unsteadiness on feet, poor co-ordination), a dazed, blank or vacant look and/or confusion and unawareness of their surroundings.
 Of course the signs are relevant only after the player experiences a blow to the head.
In sports, an ejection (also known as dismissal, sending-off, or disqualification) is the removal of a participant from a contest due to a violation of the sport's rules.
 The exact violations that lead to an ejection vary depending upon the sport, but common causes for ejection include unsportsmanlike conduct, violent acts against another participant that are beyond the sport's generally accepted standards for such acts, abuse against officials, violations of the sport's rules that the contest official deems to be egregious, or the use of an illegal substance to better a player's game.
 Most sports have provisions that allow players to be ejected, and many allow for the ejection of coaches, managers, or other non-playing personnel.
The sport of Australian football has been called by a number of different names throughout its history; but since 1905, after the formation of the Australasian Football Council, the game has been officially called "Australian football"; and the name has been codified by the sport's governing body, the AFL Commission, as the game's official name, in the "Laws of Australian football".
 Historically, the sport has been called "Victorian rules" (referring to its origins in Melbourne), the "Victorian game", the "bouncing game", "Australasian rules", the "Australian game" and "national football", as well as several other names.
 Today, the common names for the sport are "Australian rules football" or "football", and common nicknames for the sport are "footy", "Aussie rules" or sometimes "AFL" (a genericised abbreviation of Australian Football League, the sport's largest competition and only fully professional league).
Etric Pruitt (born August 16, 1981) is a former American football defensive back for the Mobile Bay Tarpons.
 Pruitt played for the Seattle Seahawks in 2005 as a special teams player and 3rd string safety.
 Having never played safety throughout the season as well as the playoffs, he played an important role in Super Bowl XL as Seattle's second string safety Marquand Manuel (filling in for 1st string Ken Hamlin who was out most of the season) was injured in the 2nd quarter.
 In 2010, Pruitt signed to play with the Southern Indoor Football League team, the Mobile Bay Tarpons.
The Pyreliophorus was a device similar to a burning glass, created by the Portuguese priest Manuel António Gomes, also known as "padre Himalaya", whose objective was to melt many different types of materials using solar energy.
 The device used several reflecting mirrors to concentrate the sunlight into a common point.
 With this device, it was possible to reach a temperature of around 3500 °C, enough to melt many types of metals and rocks.
 Unlike a common burning glass the Pyreliophorus uses a concentric parabolic array of mirrors to concentrate the sun light into a common point, instead of a lens.
 The device uses a clock system that makes the mirror array concentric axis to rotate along the sun alignment.
The Canadian Cutting Horse Association (CCHA) is a non-profit organization dedicated to promoting the equestrian sport of cutting in Canada.
 Founded in 1954, it regulates a sport that began in the mid-1880s and became popular in Canada in the 1940s and 1950s.
 The CCHA maintains a Hall of Fame to honour members who have made outstanding contributions to the sport.
 The CCHA's patron is HRH Prince Philip, Duke of Edinburgh.
 Cutting is a sport based on ranchwork that began in the early 19th century, cutting cattle out of herds.
 Horses and riders are judged on how well they work to remove a single steer from a herd and keep it from returning.
 The CCHA promotes a type of horse called the Canadian cutting horse; this type is made up of many breeds with a common stock horse background.
Manuel Gourlade (25 October 1872 – 1 January 1944) was the first manager of S.L. Benfica and one of driving forces that led to the creation of Sport Lisboa that 4 years later would be known as Sport Lisboa e Benfica.