The Oklahoman (Darnell Mayberry) reports: Nenad Krstic is officially a member of the Thunder after having his work visa approved Monday. And with a new team comes a new nickname. Krstic, the 7-foot center who was signed Dec. 30, is no longer affectionately referred to as “Curly” as he was during his four seasons with the New Jersey Nets. Thunder players have taken to the nickname “Krispy.” While the nickname is more of a play off Krstic’s last name, it could carry a double meaning for how crisp Krstic has been in his first week of practice. “He’s looking good,” Desmond Mason said of Krstic, who could make his Thunder debut tonight against the New York Knicks.