The Detroit Lions will hold rookie minicamp this weekend without coach Dan Campbell, who is away from the team for unspecified personal reasons.Campbell is expected to return to the team later this month, the Detroit Free Press reported Friday. The next scheduled event is May 21-23 with organized team activity practices.The team’s draft picks, undrafted free agents and tryout players are among those at the three-day camp in Allen Park, Mich.The Lions had six picks in last month’s NFL draft, headlined by a pair of cornerbacks — first-round selection Terrion Arnold (Alabama) and second-rounder Ennis Rakestraw Jr. (Missouri).
