Question: Mark McGrath has played for the Washington Redskins and a team that joined the NFL as an expansion team in what year?

Context paragraphs:
Ron Snidow: Ronald Wayne Snidow (December 30, 1941 – May 17, 2009) was an American football defensive tackle in the National Football League for the Washington Redskins and the Cleveland Browns.  He attended San Rafael High School in California.  He played college football at the University of Oregon.  The Washington Redskins drafted Snidow in the third round of the 1963 NFL draft.  After five seasons with the Redskins, he was traded to the Cleveland Browns in exchange for a second round draft choice, just prior to the opening of the 1968 season.  Snidow was first-team All-Pro with the Browns in 1969.  He appeared in 126 career regular season games.  After suffering a broken leg while playing with the Browns, he retired at the end of the 1972 season, having played 10 years in the NFL.  After retiring from the NFL, Snidow worked as a commercial real estate broker in Southern California, until he retired.  In 2008, Snidow was diagnosed with Lou Gehrig's disease, which he died from a year later on May 17, 2009, while on a vacation cruise off the coast of Italy on the island of Elba.

Seattle Seahawks: The Seattle Seahawks are a professional American football franchise based in Seattle, Washington.  The Seahawks compete in the National Football League (NFL) as a member club of the league's National Football Conference (NFC) West division.  The Seahawks joined the NFL in 1976 as an expansion team.  The Seahawks are owned by Paul Allen and are currently coached by Pete Carroll.  Since 2002, the Seahawks have played their home games at CenturyLink Field (formerly Qwest Field), located south of downtown Seattle.  The Seahawks previously played home games in the Kingdome (1976–1999) and Husky Stadium (1994, 2000–2001).

2011 Washington Redskins season: The Washington Redskins season was the 79th season for the team in the National Football League (NFL) and their 74th representing the District of Columbia (Washington, D.C.).  Their home games were played at FedExField in Landover, Maryland for the 15th consecutive year.  Washington played in the Eastern division of the National Football Conference (NFC).  The Redskins failed to improve on their 2010 record of 6–10, but did manage to defeat the New York Giants, the eventual Super Bowl champions, twice in the regular season, becoming only the sixth team to do so (the 1969 Oakland Raiders, 1983 Seattle Seahawks, 1995 Washington Redskins, 2002 New Orleans Saints, and 2007 Dallas Cowboys, also against the Giants, being the others).

List of Washington Redskins players: <onlyinclude>This is a list of American football players who have played for the Washington Redskins, as well as its predecessors the Boston Braves (1932) and Boston Redskins (1933–1936), in the National Football League (NFL).  It includes players that have played at least five games in the NFL regular season.  The Washington Redskins franchise was founded in Boston, Massachusetts as the Boston Braves, named after the local baseball franchise.  The name was changed the next year to the Redskins.  In 1937, the franchise moved to Washington, D.C.

Washington Redskins: The Washington Redskins are a professional American football team based in the Washington metropolitan area.  The Redskins compete in the National Football League (NFL) as a member of the National Football Conference (NFC) East division.  The team plays its home games at FedExField in Landover, Maryland; its headquarters and training facility are at Inova Sports Performance Center at Redskins Park in Ashburn, Virginia, and the Redskins Complex in Richmond, Virginia, respectively.  The Redskins have played more than 1,000 games since 1932, and are one of only five franchises in the NFL to record over 600 regular season and postseason wins, reaching that mark in 2015.  The Redskins have won five NFL Championships (two pre-1966 merger announcement, and three Super Bowls).  The franchise has captured 14 NFL divisional titles and six NFL conference championships.  The Redskins were the first team in the NFL with an official marching band, and also the first team to have a fight song, "Hail to the Redskins".

Eagles–Redskins rivalry: The Eagles–Redskins rivalry is a rivalry between the Philadelphia Eagles and Washington Redskins of the National Football League.  The rivalry began in 1934, during the time the Redskins played in Boston.  The Washington Redskins lead in all-time series 86–74–6.  The Redskins have won 3 Super Bowls and 2 NFL Championships, while the Eagles have won 3 NFL Championships.  The rivalry is one of the most heated rivalries in the NFL, and has featured some of the most memorable moments in NFL history.  The rivalry is most notable for the "Body Bag Game", where the Eagles knocked out eight Redskins players in a game in 1990.

Bobby Jackson (American football coach): Robert Lanier Jackson (born February 16, 1940) is an American former football coach and college player who was a professional assistant coach in the National Football League (NFL) for 21 seasons, including three as an offensive coordinator.  In his NFL tenure, Jackson coached five Pro Bowl running backs, including at least one in three of his five stops where he has tutored the running backs.  The list consists of Pro Football Hall of Fame player Marshall Faulk (St. Louis Rams 2000–02), Stephen Davis (Washington Redskins 1999), Terry Allen (Washington Redskins 1996), Brian Mitchell (Washington Redskins, 1995), and Marion Butts (San Diego Chargers, 1990–91).

Mark McGrath (American football): Mark Allen McGrath (born December 17, 1957 in San Diego, California) is a former American football wide receiver in the National Football League for the Seattle Seahawks and the Washington Redskins.  He played college football at Montana State University.

Josh Symonette: Joshua Symonette (born May 8, 1978 in Miami, Florida) is a former American football safety in the National Football League for the Washington Redskins.  While in Washington, Symonette made the team in 2000 as an undrafted rookie free agent.  He was active for four games and recorded two special team tackles.  Off the field, he was involved in the Washington Redskins Leadership Council, working with community programs such as Redskins Read and 4th and Life.  He also spent time with the Miami Dolphins, signing as a free agent in 2002.  In 2003, he played one season for the Berlin Thunder in the now defunct NFL Europe.  He played college football at Tennessee Tech.

List of Washington Redskins head coaches: This is a complete list of Washington Redskins head coaches.  There have been 28 head coaches for the Washington Redskins, including coaches for the Boston Redskins (1933–1936) and Boston Braves (1932), of the National Football League (NFL).  The Redskins franchise was founded as the Boston Braves, named after the local baseball franchise.  The team changed their name to the Redskins in and moved to Washington, D.C. in .

Supporting paragraphs: Mark McGrath (American football) Seattle Seahawks
Answer: 1976