▁shoulders . ▁Sometimes ▁the ▁wrest ler ▁may ▁place ▁his ▁foot ▁or ▁kne e ▁on ▁the ▁oppon ent ' s ▁upper ▁back ▁in ▁order ▁to ▁ex ert ▁even ▁more ▁pressure . ▁ ▁Se ated ▁sur f board ▁Another ▁version ▁of ▁a ▁sur f board ▁which ▁is ▁known ▁as ▁a ▁" se ated ▁sur f board ▁stretch " ▁but ▁referred ▁to ▁as ▁a ▁" mod ified ▁sur f board ▁stretch ", ▁most ▁often ▁applied ▁by ▁a ▁standing ▁wrest ler ▁against ▁a ▁pr one ▁oppon ent — but ▁may ▁also ▁be ▁applied ▁by ▁a ▁se ated ▁wrest ler ▁or ▁against ▁a ▁se ated ▁or ▁kne eling ▁oppon ent — se es ▁the ▁wrest ler ▁grasp ▁both ▁of ▁his ▁oppon ent ' s ▁w rist s , ▁while ▁placing ▁their ▁foot ▁or ▁kne e ▁on ▁the ▁oppon ent ' s ▁upper ▁back , ▁pulling ▁back ▁on ▁the ▁arms ▁to ▁compress ▁the ▁oppon ent ' s ▁shoulder ▁bl ades . ▁ ▁Leg lock s ▁ ▁An k le ▁lock ▁ ▁In ▁this ▁toe ▁hold ▁man eu ver , ▁a ▁wrest ler ▁will ▁grab ▁the ▁oppon ent ' s ▁foot ▁and ▁lift ▁their ▁leg ▁off ▁the ▁ground . ▁With ▁one ▁hand ▁the ▁wrest ler ▁will ▁grab ▁either ▁the ▁to es ▁or ▁the ▁outside ▁of ▁the ▁foot , ▁then ▁with ▁the ▁other ▁wrap ▁the ▁an k le ▁to ▁create ▁a ▁" hole " ▁for ▁the ▁joint . ▁A ▁gra pe v ine ▁variation ▁sees ▁the ▁wrest ler ▁applying ▁the ▁an k le ▁lock ▁hold ▁and ▁then ▁falling ▁to ▁the ▁mat