Tight Traps/Neck

Hello guys/gals.

I have just changed to 5/3/1 BBB and my traps/ neck are getting a hammering. I feel tightness and the bottom of my upper back (If that makes sense).

Is there any particular stretches I could to to re-leave some tension?

thanks.

I had this question to Thib and some one posted this video, worked really well

Scapular Mobility | Feat. Kelly Starrett | MobilityWOD - YouTube it starts around 1:35.

Other Kelly Starrett videos are gold as well

Good Luck