SERIOUS Back Workout with sergi constance!
![](https://i.ytimg.com/vi/QGyaUK-2Zvo/mqdefault.jpg)
7:29
World's Best Back Workout
![](https://i.ytimg.com/vi/WuTNvgToNJY/mqdefault.jpg)
7:14
Back Workout | Charles Glass Trains Errol Moore at the Mecca
![](https://i.ytimg.com/vi/RZvLkHN50wg/mqdefault.jpg)
24:11
Build Leg Mass | Session with Sergi Constance |
![](https://i.ytimg.com/vi/GJi2m2qwH14/mqdefault.jpg)
31:12
GET MASS WITH GLASS Series | Ep 2 |
![](https://i.ytimg.com/vi/pEWW2jr91DY/mqdefault.jpg)
19:42
ARMS & FOREARMS SUPERSET workout💪
![](https://i.ytimg.com/vi/yKqScs_PaBA/mqdefault.jpg)
24:43
SIMEON PANDA & ANDREI DEIU BIG CHEST ROUTINE
![](https://i.ytimg.com/vi/3uklLbOmSD8/mqdefault.jpg)
12:19
BACK Workout for thickness - UNDERCONTRUCTION series 2
![](https://i.ytimg.com/vi/5dp2FUN3mRQ/mqdefault.jpg)
30:02