Murphy was set to serve a four-game suspension at the beginning of the regular season after violating the NFL's drug abuse policy in the offseason.
The Redskins wanted to be creative with their outside linebackers, with both Smith and Murphy capable of playing inside in certain packages - as they did on occasion in 2016.
Bolt pulls up injured in final race of his career
Lasitskene, who missed last year's Rio Olympics because of Russia's suspension, failed at 1.99 twice but regained form thereafter. Newly-crowned 110m hurdles champion Omar McLeod, Jamaica's lead-off runner, added: "Everybody was jelly, everybody was pumped".
Murphy fell and twisted his left knee awkwardly in the first quarter of the team's preseason game against the Ravens Thursday night.
"It's too bad", coach Jay Gruden said before practice Saturday.
It's an unfortunate blow for Murphy, who is coming off the best season of his career, during which he recorded nine sacks and 55 quarterback pressures (sacks plus hits plus hurries).
NATO comments on North Korea's possible attack on US Pacific base
But if North Korea escalates, the USA must be prepared to escalate to massive disarming strikes, including use of nuclear weapons.
Washington also waived tackle Kevin Bowen who was designated as injured. He played two seasons with UAB, recording 40 receptions for 648 yards and five touchdowns.
Following the 2014 season, Staples transferred to Louisville after it was announced that UAB's football program was being shut down. In two seasons with the Cardinals, he had 73 receptions for 1,253 yards and five touchdowns.
MLB Trade Rumors: Brewers reportedly close to adding Mets infielder Neil Walker
His salary this season is $17.2 million, of which the Brewers would appear to be responsible for about the remaining $4.7 million. Overall though, Walker has actually had a decent second year in Queens, so the Brewers will be picking a very talented infielder.