Standard pick & roll. Big defender 'hedges' — steps out to slow the ball-handler — then recovers back to their man (the roller). Ball-handler's defender fights over the screen.
Most common defensive coverage against pick & roll at the modern game. Requires precise timing.
Big: hedge with both feet outside the lane, hands up.
Make the ball-handler hesitate — don't dive too aggressive.
Recover the moment the ball-handler retreats.
Guard's defender: chase over the screen, never under.
Communicate: 'screen left' before the screen is set.
Switch coverage (defenders swap their men). Drop coverage (big stays in the paint, gives up the mid-range shot). Trap coverage (both defenders go to the ball, forces a pass).