Brian Collins Westbrook (born September 2, 1979 in Washington, D.C.) is an American football running back for the Philadelphia Eagles of the National Football League. He was drafted by the Eagles in the third round of the 2002 NFL Draft. He played college football at Villanova.

Westbrook has earned two Pro Bowl selections with the Eagles in 2004 and 2007.

A running back (RB) is the position of a player on an American or Canadian football team who usually lines up in the offensive backfield. The primary roles of a running back are to receive handoffs from the quarterback for a rushing play, to catch passes from out of the backfield, and to block.

There are usually one or two running backs on the field for a given play, depending on the offensive formation. A running back may be a halfback (HB for short, in certain conexts also referred to as a tailback) or a fullback (FB). While a fullback is technically a running back, in modern parlance the terms "running back" and "RB" are frequently used to refer only to halfbacks/tailbacks.

The Philadelphia Eagles are a professional American football team based in Philadelphia, Pennsylvania. They are current members of the NFC East of the National Football Conference (NFC). The Eagles have won three NFL titles and made two Super Bowl appearances (1980 and 2004).

With the Frankford Yellow Jackets franchise remaining dormant for an extended time, Bert Bell purchased the rights to a Philadelphia franchise in 1933. Named for a symbol of FDR's New Deal, the Philadelphia Eagles began play.

Many Eagles players have made the NFL Hall of Fame including Chuck Bednarik, Bob Brown, Reggie White, Steve Van Buren, Tommy McDonald, Earle "Greasy" Neale, Pete Pihos, Sonny Jurgensen and Norm Van Brocklin. Owner and NFL Commisioner Bert Bell was also inducted.

The Super Bowl was first played on January 15, 1967 as part of an agreement between the NFL and its younger rival, the American Football League (AFL) in which each league's championship team would play each other in an "AFL-NFL World Championship Game". After the leagues merged in 1970, the Super Bowl became the NFL's championship game, played between the champions of the league's two conferences: the American Football Conference (AFC) and the National Football Conference (NFC).

Since the NFL season extends into the New Year, the Super Bowl uses Roman numerals to identify each game, rather than the year it was held. For example, Super Bowl XLII, played in February 2008, was actually part of the 2007 season.

The National Football League (NFL) is the largest professional American football league. It is an unincorporated 501(c)(6) association controlled by its members.For example, "The Oakland Raiders is a professional football team owned by Al Davis, with a membership in the National Football League (NFL), which is an unincorporated association governed by its own constitution and bylaws." Oakland Raiders v. National Football League, 41 Cal.4th 624, 629 (2007). It was formed by eleven teams in 1920 as the American Professional Football Association (the league changed the name to American Professional Football League in 1921 and then settled on its current name in 1922). The league currently consists of thirty-two teams from American cities and regions, divided evenly into two conferences ? the American Football Conference (AFC) and National Football Conference (NFC) ? of four four-team divisions.

The regular season is a seventeen-week schedule during which each team has one bye week and plays sixteen games. This schedule includes six games against a team's divisional rivals, as well as several inter-division and inter-conference games. The season currently starts on the Thursday night in the first full week of September (the Thursday after Labor Day) and runs weekly to late December or early January.

At the end of each regular season, six teams from each conference play in the NFL playoffs, a twelve-team single-elimination tournament that culminates with the championship game, known as the Super Bowl. This game is held at a pre-selected site which is usually a city that hosts an NFL team. The following week, selected all-star players from both the AFC and NFC meet in the Pro Bowl, held in Honolulu, Hawaii.

While baseball is known as America's "national pastime," football is the most popular sport in the United States. According to the Harris Poll, professional football moved ahead of baseball as the fans' favorite in 1965 and has remained America's favorite sport ever since. In a Harris sports poll done in 2008, the NFL was the favorite sport of nearly as many people (30 percent) as the combined total of the next four professional sports ? baseball (fifteen percent), auto racing (ten percent), hockey (five percent) and men's pro basketball (four percent), http://www.harrisinteractive.com/harris_poll/index.asp?PID=866 Additionally, Football's American TV viewership ratings now surpass those of other sports.National Football League, "NFL:America's Choice," January 2007, http://www.coldhardfootballfacts.com/Documents/NFL_all_about_SB_1-07.pdf

The NFL has the highest per-game attendance of any domestic professional sports league in the world, drawing over 67,000 spectators per game for each of its two most recently completed seasons, 2006 and 2007. However, the NFL's overall attendance is only approximately 20% of that of Major League Baseball, due to MLB's much longer schedule (about 162+ games).