Brown, an undrafted rookie safety out of Marshall, played himself onto the roster bubble by recovering three fumbles and intercepting a pass in the span of two preseason games.
According to industry sources, the Ravens are also planning to fill two more spots by signing outside linebacker Adrian Hamilton and safety Anthony Levine, who were but cut recently by their respective teams.
Hamilton who was cut earlier this week by the Dallas Cowboys, is viewed as an intriguing developmental player. He led the nation and broke a Southwestern Athletic Conference single-season record last year with 20 1/2 sacks for Prairie View A&M.
Hamilton is en route to Baltimore to sign a deal and he'd become the sixth member of the practice squad.
Levine is poised to become the seventh. The safety and former standout at Tennessee State has spent the past two seasons on the Green Bay Packers' practice squad.
Allen, a seventh-round pick out of Georgia Tech last year, had a disappointing preseason and was beaten out by undrafted rookie free agent Bobby Rainey for the third running back spot.
Bynes missed just about all of training camp with cracked vertebrae in his back.
With Matt Balasavage and Bruce Figgins both getting injured in Thursday’s preseason finale, the Ravens would like to add a tight end to their practice squad. Middle linebacker Nigel Carr is also under consideration to be brought back. The Ravens had discussions about bringing back outside linebacker Chavis Williams, but they informed him that they will go in another direction.
The Ravens were hoping to get big nose tackle Ishmaa’ily Kitchen, who was cut Friday, onto their practice squad, but the former Kent State standout was claimed by the Cleveland Browns.