FOXBOROUGH — Before the start of rookie minicamp, New England Patriots head coach Mike Vrabel told reporters that defensive coordinator Terrell Williams was not at the facility at the moment as he works through a medical condition.

Williams remained in Detroit throughout the spring, and in his absence, inside linebackers coach Zak Kuhr had an increased role. But Williams was back out there at the end of July when the Patriots took the field for training camp.

However, during practice one day, Williams appeared to have collapsed on the practice field, which sparked concern for his health. However, he confirmed that it was just due to dehydration.

“No, I don’t want to get into that right now. It’s really irrelevant. I’m not dealing with that anymore, so we’ve kind of moved on,” Williams said. “I know people were worried about what happened on the field, and really, I was dehydrated. That could happen to you, so drink water. That’s what you learn from that. But I feel great.”

So, is there any reason for concern with the season right around the corner?

“I’m ready to go. That’s why I’m here. Camp’s been good. I feel great. The guys are practicing hard, so it’s been a good camp so far,” Williams said. “It’s great to be back. It’s training camp. It’s football – and it’s normal to me. I’m happy to be back. I’m happy to be around these players. I’m happy to be here in New England.”