Johnese, a 5-foot-9, 210-pound rookie, made himself eligible for the 2005 NFL Draft following his junior season at Northwestern (La.) State, but was not selected. He was named the Southland Conference Player of the Year and received All-Southland Conference honors the last three seasons, earning first-team billing as a freshman and junior.
As a junior, Johnese ran for a career-high 1,125 yards with nine scores and helped his team to a 2004 league championship. He finished fourth on the school's career rushing list with 2,977 yards, while setting the Demons' career scoring record (206 points) and career touchdown mark (34).
Johnese, No. 34 on the Green Bay roster, joins QB Craig Nall and DT Quintene Newhouse -signed July. 29 - as former Northwestern (La.) State players currently with the Packers. His last name is pronounced john-EES.
Robertson had re-signed as a free agent Jan. 11. He originally joined Green Bay as a member of the practice squad Nov. 24, after not being drafted out of college.
Robertson suffered a broken knee cap during practice on Aug. 1.