Here are my takeaways from Day 1 of joint practice in Philadelphia, which was hot, physical, and saw both teams playing extremely hard.

The Vikings and Patriots just held their first of two joint training camp practices on a beautiful afternoon at TCO Performance Center. Fans packed the stands to watch as the Vikings got an opportunity to test themselves against a different opponent in a practice setting after weeks of battling each other.

Vikings defensive coordinator Brian Flores brought the heat at practice, challenging rookie offensive linemen Will Campbell and Jared Wilson.