The contrast between the San Francisco 49ers practice and the Oakland Raiders practice was stark.

One had tempo, urgency and fun. The other was stagnant and too focused on install. Let the players play!

It also featured wide receivers tackling and safeties covering 5ft8 slots.

— Under Zone X (Frisco)/Phoenix Check/Stick Slasher2 (@mattyfbrown) January 22, 2019