ive rolled with gsp before his first fight with bj penn,gsp came to renzos academy in nyc to train under renzos watchful eye,he wanted renzo to help sharpen his bjj game.gsp trained under the watchful eye of john danaher,a nasty renzo blackbelt that is imho prolly one of the best in the world at having perfect bjj technique.when john and george rolled the first time,gsp was taking privates in the corner with john,most of the class stopped rolling and just watched.john caught george in a triangle in under 30 seconds,caught him in a armbar 1 minute later,caught george in a heelhook 1 minut later and it was cool.gsp didnt get pissed or anything, but to show you how fast gsp learns,after the month or so gsp was there john wasnt catching him as much as he did in the begining,but john clearly dominated him in pure submission wrestling and bjj.gsp is pretty good with a gi on also,like i said,it was just bjj,gi and no gi,i dont want anyone taking it the wrong way thinking that im saying john could kick gsp,s ass in the cage,im not implying that at all.gsp was there just to work on his bjj skills and nothing else.i rolled with gsp and i weighed 250 or so at that time and he threw me around ike a rag doll,destroyed me,subbed me at will and when gsp grabs you its like a oak tree came alive and these huge branches come out and squeezes the life out of ya,lol.hes a very powerful man and after he kicked my ass he came over and talked to me,said i have great potential and he thought i was a cool guy,the cool guy thing i excepted but the great potential thing was a joke in my mind,im a washed up old man just trying my best to just get through a grappling session without breaking one of my limbs off or tearing a muscle or tendon,lol.hes truely a very nice guy,one of the nicest guys youll ever come across in your life