With a 73-point win over the Thunder, the Grizzlies set an NBA record. Memphis defeated Oklahoma 152-79, breaking the previous record of 148-80 set by the Cleveland Cavaliers against the Miami Heat in 1991. ISTANBUL, TURKEY With a 152-79 win over the Oklahoma City Thunder on Thursday, the Memphis Grizzlies set an NBA record for the largest win margin. The 73-point victory surpassed the Cleveland Cavaliers’ 68-point victory over the Miami Heat in December. 17th of September, 1991 Despite missing star guard Ja Morant, the Grizzlies got off to a strong start, leading 31-16 at the end of the first…