A. 

Box squat
8x2x75%
-wide stance, below parallel 
-60 sec. Rest
 
B.
Back extension
3×10
 
C.
6 Rounds Partner WOD 
200m- sled pull
9- t2b
6- power cleans 135/95
30- double under
 
-while partner A pulls the sled, partner B completes all repetitions