Detroit Lions head coach Dan Campbell has had to pause practice multiple times in training camp because of things getting too heated between players. Here's what he said about the topic on Friday.

Cornerback Ennis Rakestraw left the first day of practice with a chest injury and defensive lineman Roy Lopez left Monday's practice with a foot injury. Neither player had fully returned to practice as of Friday morning. Linebacker Alex Anzalone has not practiced because of a hamstring injury.