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the linebacker is a playing position in american football
A linebacker (LB or backer) is a playing position in American football and Canadian football.
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Linebacker
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Linebacker
A linebacker (LB or backer) is a playing position in American football and Canadian football. Linebackers are members of the defensive team, and line up approximately three to five yards (4 m) behind the line of scrimmage, behind the defensive linemen, and therefore "back up the line." Linebackers generally align themselves before the ball is snapped by standing upright in a "two-point stance" (as opposed to the defensive linemen, who put one or two hands on the ground for a "three-point stance" or "four-point stance" before the ball is snapped). The goal of the linebacker is to provide either extra run protection or extra pass protection based on the particular defensive play being executed.
2015–16 NFL playoffs
The National Football League playoffs for the 2015 season began on January 9, 2016. The postseason tournament concluded with Super Bowl 50, on February 7, when the Denver Broncos defeated the Carolina Panthers at Levi's Stadium in Santa Clara, California. For this year only, the Super Bowl decided not to use a Roman numeral ("L") and instead used the standard numeral "50". According to Jaime Weston, the league's vice president of brand and creative, the primary reason was that the league's graphic designers had difficulty designing a suitable, aesthetically pleasing logo with only the Roman numeral "L".
Early history of American football
The early history of American football can be traced to early versions of rugby football and association football. Both games have their origin in varieties of football played in Britain in the mid–19th century, in which a football is kicked at a goal or run over a line, which in turn were based on the varieties of English public school football games. American football resulted from several major divergences from association football and rugby football, most notably the rule changes instituted by Walter Camp, a Yale University and Hopkins School graduate considered to be the "father of gridiron football".
2012–13 NFL playoffs
The National Football League playoffs for the 2012 season began on January 5, 2013. The postseason tournament concluded with the Baltimore Ravens defeating the San Francisco 49ers in Super Bowl XLVII, 34–31, on February 3, at Mercedes-Benz Superdome in New Orleans, Louisiana. With the exception of the Indianapolis Colts, all teams from the AFC returned to the playoffs. In addition, all teams in both conferences won at least 10 games, the first time since 2005. "Unless otherwise noted, all times listed are Eastern Standard Time ()"  In the United States, NBC broadcast the first two Wild Card playoff games.
2015 Alabama Crimson Tide football team
The 2015 Alabama Crimson Tide football team (variously "Alabama", "UA", "Bama", or "The Tide") represented the University of Alabama in the 2015 NCAA Division I FBS football season. It marked the Crimson Tide's 121st overall season, 82nd as a member of the Southeastern Conference (SEC) and its 24th within the SEC Western Division. The team played its home games at Bryant–Denny Stadium in Tuscaloosa, Alabama. They were led by ninth-year head coach Nick Saban. They finished the season with a record of 14 wins and 1 loss (14–1 overall, 7–1 in the SEC), as SEC champions and as consensus national champions after they defeated Clemson in the College Football Playoff (CFP) National Championship Game.
2007 USC Trojans football team
The 2007 USC Trojans football team (variously "Trojans" or "USC") represented the University of Southern California during the 2007 NCAA Division I FBS football season, winning a share of the Pacific-10 Conference (Pac-10) championship and winning the 2008 Rose Bowl. The team was coached by Pete Carroll and played its home games at the Los Angeles Coliseum. The team entered the season with high expectations. It was ranked No. 1 in all national pre-season polls, picked unanimously to win the Pac-10 Conference and expected to contend for a national championship. Those hopes were dealt a major blow when the Trojans lost to 41-point underdog Stanford in a mid-season game that was named one of the greatest upsets in a season that became defined by them.
1998–99 NFL playoffs
The National Football League playoffs for the 1998 season began on January 2, 1999. The postseason tournament concluded with the Denver Broncos defeating the Atlanta Falcons in Super Bowl XXXIII, 34–19, on January 31, at Pro Player Stadium in Miami. Under the new U.S. television broadcast contracts that took effect starting this season, CBS replaced NBC as the broadcaster of most of the AFC playoff games. ABC continued to broadcast the first two Wild Card playoff games. Fox televised the rest of the NFC games and Super Bowl XXXIII. The Dolphins forced five Bills turnovers, including Buffalo quarterback Doug Flutie's fumble at the Miami 5-yard line with 17 seconds left in the game.