Within the first 3 days of camp, there has been a torrent of offseason injury updates along with some new injuries. Today on Day 4, the Lions have a day off, so it's a good time to catch our breath and recap what's going on from a health standpoint.

The Lions opened training camp this week, which included return of former first-round pick Aidan Hutchinson. He posted 7.5 sacks in five games last season before a season-ending injury. Hutchinson, quarterback Jared Goff and others are integral parts of a team that — if Campbell's warning is correct — will be one of the NFL's best.