NFL teams are allowed up to 30 collegiate player visits and must be completed one week before the NFL draft.
The 6-2, 254-pound Roberts played tackle and defensive end at Cincinnati but is being considered as a linebacker at the NFL level.
The Packers are on the lookout for help at the outside linebacker position and likely will select one in the NFL draft. Green Bay released injury-prone veteran Na'il Diggs in early March, leaving middle linebacker Nick Barnett and outside linebacker Robert Thomas as the only starters. Thomas finished the season on injured reserve, and his weak-side position probably will be up for grabs in training camp.
Here are the numbers that Roberts turned in while working out for the Packers in the Don Hutson Center in Green Bay during the last week of March:
40 time: 4.73 - 4.74 seconds
Vertical leap: - 34 inches
Broad jump: 9-feet, 8.5-inches
Short Shuttle: 4.40 seconds
Pro Shuttle: 7.21 seconds
Here is more on Roberts from Scout.com:
Previous 40 time: 4.69
Bio: Two-year starter used at both defensive tackle and end. Senior totals included 50/12.5/6 after 32/5.5/1.5 as a junior.
Positives: Quick, explosive lineman with potential as a rush linebacker. Plays with good pad level, fluid moving laterally and immediately changes direction. Fast off the edge, flashes on the scene and rarely off his feet. Effective playing in space.
Negatives: Under-sized for defensive tackle, swallowed up at the point or handled by tight ends.
Analysis: Out of position on the interior defensive line, Roberts displays enough athletic skills that he will get looks standing up over tackle in a 3-4 defense.