If the ball touches the ground, the runner is down. This is why 'the ground cannot cause a fumble.'
"travelling"
Corey Dillon has: Played Himself - Cincinnati Bengals Running Back in "The NFL on CBS" in 1956. Played Himself - Patriots Running Back in "The NFL on CBS" in 1956. Played Himself - Cincinnati Bengals Running Back in "The NFL on NBC" in 1965. Played himself in "NFL Films Presents" in 1967. Played Himself - New England Patriots Running Back in "NFL Monday Night Football" in 1970. Played Cincinnati Bengals Player in "NFL Blast" in 1997. Played himself in "Beyond the Glory" in 2001. Played himself in "Super Bowl XXXIX" in 2005. Played Himself - New England Patriots Running Back in "NBC Sunday Night Football" in 2006. Played himself in "BarFly" in 2011. Played Himself - Former NFL Player in "Kendra on Top" in 2012.
Friction is essential for Walking and other movement. So obviously it is of paramount importance in football. Without friction, A player can't grip the ball, the ground pr other players. Running, which is the base of football, doesnt exist without friction. Hence, no friction = no football.
The cast of All-Star Benefit Celebrity Baseball Game - 1967 includes: Don Adams as Himself - Player Woody Allen as Himself - Player Steve Allen as Himself - Player Milton Berle as Himself - Player John Cassavetes as Himself - Player Roberto Clemente as Himself - Player Bill Dana as Himself - Player Bobby Darin as Himself - Player Don Drysdale as Himself - Player Leo Durocher as Himself - Player Peter Falk as Himself - Player James Garner as Himself - Player Harmon Killebrew as Himself - Player Jerry Lewis as Himself - Host Willie Mays as Himself - Player Tim McCarver as Himself - Player Willie McCovey as Himself - Player Sam McDowell as Himself - Player Robert Morse as Himself - Player Dale Robertson as Himself - Player Vin Scully as Himself - Host
It is considered that a shin can not hit the ground without the knee hitting first. So yes the player is down.
The cast of Television Parts Home Companion - 1985 includes: Joe Allaine as Himself - Player Bobbie Bates as Herself - Player Billy Beck as Himself - Player Ivy Bethune as Herself - Player Richard Brainard as Himself - Player Tina Caspary as Herself - Player Joe Chemay as Himself - Player Susan Dear as Herself - Player Henry Diltz as Himself - Player Randy Doney as Himself - Player Chip Douglas as Himself - Player Bullets Durgom as Himself - Player Michelle Elkin as Herself - Player Mitchell Ellis as Himself - Player Cyrus Faryar as Himself - Player Nora Feldman as Herself - Player Garry Goodrow as Himself - Player Nancy Gregory as Herself - Player Dan Huff as Himself - Player Rodney Kageyama as Himself - Player Bruce Keeler as Himself - Player Paul Leim as Himself - Player Paddy Morrissey as Himself - Player Michael Nesmith as Himself - Player Greta Ronningen as Herself - Player Diane Stilwell as Herself - Player
Sidney Thornton has: Played Himself - Pittsburgh Steelers Running Back in "The NFL on NBC" in 1965. Played Himself - Pittsburgh Steelers Running Back in "NFL Monday Night Football" in 1970. Played Himself - Pittsburgh Steelers Running Back in "1978 AFC Championship Game" in 1979. Played Himself - Pittsburgh Steelers Running Back in "1979 AFC Championship Game" in 1980. Played Himself - Pittsburgh Steelers Running Back in "Super Bowl XIV" in 1980. Played Steeler Player in "Fighting Back" in 1980.
The cast of Pro-Celebrity Snooker - 1976 includes: Duggie Brown as Himself - Player Joe Brown as Himself - Player Brian Close as Himself - Player Norman Collier as Himself - Player Trevor Francis as himself Peter Gordeno as himself Alex Higgins as Himself - Player Gareth Hunt as himself Sydney LEE as Himself - Referee Dave Lee Travis as Himself - Player Kenny Lynch as Himself - Player Bill Maynard as himself John Pulman as Himself - Commentator Ray Reardon as himself Ray Reardon as Himself - Commentator Ray Reardon as Himself - Player Dennis Taylor as himself Cliff Thorburn as himself Cliff Thorburn as Himself - Player Frankie Vaughan as Himself - Player
The cast of UEFA Cup Final 2002 - 2002 includes: DeDe as Himself - Dortmund Player Evanilson as Himself - Dortmund Player Addo as Himself - Dortmund Player Amoroso as Himself - Dortmund Player Ewerthon as Himself - Dortmund Player Mario Been as Himself - Assistant Coach of Feyenoord Paul Bosvelt as Himself - Feyenoord Player Jon Dahl Tomasson as Himself - Feyenoord Player Ferry de Haan as Himself - Feyenoord Player Johan Elmander as Himself - Feyenoord Player Brett Emerton as Himself - Feyenoord Player at Ceremony Chris Gyan as Himself - Feyenoord Player Jorg Heinrich as Himself - Dortmund Player Bonaventura Kalou as Himself - Feyenoord Player Jan Koller as Himself - Dortmund Player Igor Korneev as Himself - Feyenoord Player at Ceremony Jens Lehmann as Himself - Dortmund Goalkeeper Patrik Lodewijks as himself Gerard Meijer as Himself - Verzorger van Feyenoord spelers John Metgod as Himself - Feyenoord Assistant Coach Shinji Ono as Himself - Feyenoord Player Patrick Paauwwe as Himself - Feyenoord Player Stefan Reuter as Himself - Dortmund Player Lars Ricken as Himself - Dortmund Player Tomasz Rzasa as Himself - Feyenoord Player Matthias Sammer as Himself - Dortmund Coach Ebi Smolarek as Himself - Feyenoord Player at Ceremony Jeroen van den Herik as himself Ulrich van Gobbel as Himself - Feyenoord Player at Ceremony Pierre van Hooijdonk as Himself - Feyenoord Player Bert van Marwijk as Himself - Feyenoord Coach Robin van Persie as Himself - Feyenoord Player Kees van Wonderen as Himself - Feyenoord Player Edwin Zoetebier as Himself - Feyenoord Goalkeeper
Friction is essential for Walking and other movement. So obviously it is of paramount importance in football. Without friction, A player can't grip the ball, the ground pr other players. Running, which is the base of football, doesnt exist without friction. Hence, no friction = no football.
The cast of Greatest Goals - 1987 includes: Diego Armando Maradona as Himself - Argentina Player Franz Beckenbauer as Himself - West-Germany Player Bobby Charlton as Himself - England Player Johan Cruyff as Himself - Holland Player Geoff Hurst as Himself - England Player Kees Jansma as himself Mario Kempes as Himself - Argentina Player Gary Lineker as Himself - England Player Johan Neeskens as Himself - Holland Player Michel Platini as Himself - France Player Willem van Hanegem as Himself - Holland Player
Terrell Davis has: Played Himself - Denver Broncos Running Back in "The NFL on NBC" in 1965. Played Himself - Denver Broncos Running Back in "NFL Monday Night Football" in 1970. Played himself in "Sister, Sister" in 1994. Played Denver Broncos Player in "NFL Blast" in 1997. Played Himself - Denver Broncos Running Back in "1997 AFC Championship Game" in 1998. Played Himself - Denver Broncos Running Back in "Super Bowl XXXII" in 1998. Played himself in "Charlie Hustle: Blueprint of Self-Made Millionaire" in 1999. Played Himself, an NFL football player in "The Jersey" in 1999. Played Himself - Denver Broncos Running Back in "Super Bowl XXXIII" in 1999. Played himself in "NFL Xtreme 2" in 1999. Played Himself - Denver Broncos Running Back in "1998 AFC Championship Game" in 1999. Played himself in "Girlfriends" in 2000. Played himself in "Beyond the Glory" in 2001. Played himself in "Rome Is Burning" in 2003. Played himself in "Quite Frankly with Stephen A. Smith" in 2005. Performed in "Deal or No Deal" in 2005. Played himself in "Super Bowl XL" in 2006. Played himself in "Back in the Day" in 2006.