Bill Russell, an NBA great who spent his entire 13-year career with the Boston Celtics, passed away at the age of 88. He won 11 NBA titles, was a five-time NBA MVP, and was a 12-time All-Star. The NFL community took to social media to share on the loss of the celebrated Celtics center.Former NFL players Robert Griffin III, Benjamin Watson, Torrey Smith, and Pro Football Hall of Famer Tim Brown shared their thoughts on the late NBA player:Robert Griffin III@RGIII@AdamSchefter A Warrior on the court and for Social Justice. RIP 🏾2376@AdamSchefter A Warrior on the court and for Social Justice. RIP 🙏🏾Benjamin Watson@BenjaminSWatsonTrailblazer. Thank you. Lord surround this family in your loving care. twitter.com/abc/status/155…ABC News@ABCBREAKING: Bill Russell, one of the greatest players in NBA history and a champion of civil rights, has died, his family says. He was 88. abcn.ws/3BvHwAT1023BREAKING: Bill Russell, one of the greatest players in NBA history and a champion of civil rights, has died, his family says. He was 88. abcn.ws/3BvHwAT https://t.co/WrnIzIxpQDTrailblazer. Thank you. Lord surround this family in your loving care. twitter.com/abc/status/155…Torrey Smith@TorreySmithWR“We can never accept the status quo until the word progress is taken out of our vocabulary” Bill Russell17718“We can never accept the status quo until the word progress is taken out of our vocabulary” Bill Russell https://t.co/02KyGAmisETim Brown@81TimBrownRest in Peace Mr. RUSSELL! Thanks for showing the way!!12713Rest in Peace Mr. RUSSELL! Thanks for showing the way!!Current NFL players Randall Cobb, Darius Slay, Tyler Lockett, and Trevon Diggs expressed their sentiments about Russell and offered their condolences:Randall Cobb@rcobb18A Champion in every facet of life. Your Legacy will stand the test of time. Rest Easy 🕊 twitter.com/realbillrussel…TheBillRussell@RealBillRussellAn announcement…21310An announcement… https://t.co/KMJ7pG4R5ZA Champion in every facet of life. Your Legacy will stand the test of time. Rest Easy 🕊 twitter.com/realbillrussel…Darius Slay@bigplay24slayR.I.P legend🏾 twitter.com/shamscharania/…Shams Charania@ShamsCharaniaNBA legend Bill Russell has passed away peacefully at the age of 88. RIP.24521NBA legend Bill Russell has passed away peacefully at the age of 88. RIP.R.I.P legend🙏🏾 twitter.com/shamscharania/…Tyler Lockett@TDLockett12RIP Bill Russell twitter.com/realbillrussel…TheBillRussell@RealBillRussellAn announcement…2358An announcement… https://t.co/KMJ7pG4R5ZRIP Bill Russell twitter.com/realbillrussel…Nino@qdiggs6RIP legend! twitter.com/shamscharania/…Shams Charania@ShamsCharaniaNBA legend Bill Russell has passed away peacefully at the age of 88. RIP.1457NBA legend Bill Russell has passed away peacefully at the age of 88. RIP.RIP legend! twitter.com/shamscharania/…The New England Patriots and Seattle Seahawks also tweeted out their regards of the NBA great:New England Patriots@PatriotsA legend and a champion whose impact extends far beyond Boston sports.Our thoughts are with Bill Russell’s loved ones and the entire @celtics family.4534526A legend and a champion whose impact extends far beyond Boston sports.Our thoughts are with Bill Russell’s loved ones and the entire @celtics family. https://t.co/WeywK9diPWSeattle Seahawks@SeahawksAn icon. Rest in peace, Bill Russell 2053154An icon. Rest in peace, Bill Russell 💙 https://t.co/zahTomajskRussell was drafted second overall by the St. Louis Hawks in the 1956 NBA Draft out of the University of San Francisco. However, he never played for the Hawks. Boston Celtics head coach and general manager Red Auerbach traded with St. Louis to acquire the center the same year he was drafted.He led the league in total rebounds per game five times in his career. He is second all-time in NBA history with 21,620 rebounds and rebounds per game with 22.5.His 11 NBA titles are the most by any player in the history of the game. Additionally, his five MVP awards are second to fellow Basketball Hall of Famer Kareem Abdul-Jabbar, who won the award six times. Following the retirement of Auerbach in 1966, he named the center as his successor, making him the first black head coach in NBA history.The Life of Bill RussellThe Hall of Famer was born in Monroe, Louisiana on February 12, 1934. His family moved to the San Francisco Bay Area where he attended McClymonds High School in Oakland. His size earned him a scholarship at the University of San Francisco where he evolved as a player, ultimately to be drafted by the Hawks.In 1975, he became the first black player to be enshrined in the Naismith Memorial Basketball Hall of Fame. He was married to Jeannine and had two sons, William and Jacob, and one daughter, Karen.