The Oklahoma City Thunder has added Oklahoma City native and former Bishop McGuinness standout Daniel Orton to its roster, the team announced Saturday. Orton, a 6-foot-10 center, will join the team on a non-guaranteed training camp contract and is not assured a spot on the opening night roster. The off-season additions of Perry Jones III, Hasheem Thabeet and Hollis Thompson bumped the number of players under contract with the Thunder to the league-maximum 15. Orton is expected to be one of a handful of training camp invitees who must fight to make the final roster. If Orton does not make the team, it’s likely that he will be assigned to the Thunder-owned Tulsa 66ers of the NBA D-League. It’s something the Thunder has done in the past with former training camp players like Jerome Dyson and Elijah Millsap.