Training camps have kicked off around the NFL, and our team reporters are on the ground each day following all the action. The Detroit Lions' camp is taking place in Allen Park, Michigan and Lions reporter Eric Woodyard has the latest intel on standouts,

At the conclusion of Tuesday's practice, Detroit Lions OnSI spoke with first-round pick Tyleik Williams and learned that three rookies have performed for the team at this current stage of camp. Williams is among the group, along with second-round pick Tate Ratledge and seventh-rounder Dominic Lovett.

The Detroit Lions may have lost their chance to land veteran edge rusher Trey Hendrickson as he returned to the Cincinnati Bengals.

ALLEN PARK, Mich. — The first week of practice for the Detroit Lions has concluded. Here’s what we learned:

The Detroit Lions will be focusing on their youth in the preseason opener. When the team takes the field for the first time Thursday in the Hall of Fame Game, there will be an abundance of starters on the sidelines. Coach Dan Campbell has traditionally avoided playing his starters much, if at all, in preseason games.

ALLEN PARK -- The Detroit Lions have released cornerback Stantley Thomas-Oliver with a reported injury waiver. Thomas-Oliver had a tough start to camp, opening on the NFI list and then suffering a hamstring injury the next day in Allen Park. The 27-year-old spent last year with the Lions appearing in one game with five special teams snaps.

The Detroit Lions' training camp continued on Tuesday ahead of the team's preseason opener on Thursday against the Los Angeles Chargers at Ford Field.

With a streamlined role, Detroit Lions second-year cornerback Ennis Rakestraw Jr. hopes to have more staying power this season following a trying rookie campaign.