The Ravens initially elected to give him a week of rest to aid the recovery process, but they've since re-evaluated and clearly aren't comfortable with risking further injury in any of their four preseason games.
The Ravens announced Friday that ailing quarterback Joe Flacco won't play in the preseason as he continues to recover from a back injury. The 10th-year standout has been re-examined, and his progress from a back issue is good.
The franchise quarterback will return to practice in the preseason, though the timing of that was not specified.
Quarterback Joe Flacco will not play in any preseason games, but is expected to be under center for Week 1 against the Cincinnati Bengals on September 10. Lewis will have surgery next week and will miss the 2017 season.
Late-night on Trump: 'You're not supposed to sound like North Korea'
However, the U.S. effort was " gaining diplomatic results and I want to stay right there, right now". Other members of Trump's administration have attempted to offer different views on the North Korea .
Flacco injured his back shortly before reporting for Ravens training camp on July 21.
Veteran backup Ryan Mallett is the starter until Flacco returns.
In other Ravens injury news, offensive lineman Alex Lewis aggravated his shoulder, and it has not responded to treatment.
In his nine National Football League seasons, Flacco has only missed six games, which all came after his ACL tear toward the end of 2015.