The Detroit Lions were without one of their top stars when training camp began Wednesday. Running back Jahmyr Gibbs was not on the field for the Lions’ opening practice. "You guys know how we feel about Gibbs and all of our guys," Lions coach Dan Campbell said Wednesday, via The Athletic. In 17 games, he ran for 1,223 yards and 13 touchdowns while catching 77 passes for 616 yards and five touchdowns. Atlanta Falcons star running back Bijan Robinson was also missing from the team’s first day of training camp.