CROSS Workout

A)
Back Squat
Build to 3RM
--then--

5 x 1 @ 90-100% of first part , go every 90sec!

B)
6 rounds, 1 min each, for max reps of:
45 Double Unders/ 75 single unders
max reps in remaining time Thrusters, 43/30 kg
Rest 1 min
Goal : 20-"30" for thrusters