The Thunder will honor Nick Collison's 15-year career on March 20 when they retire his No. 4 jersey.
According to Adrian Wojnarowski and Royce Young of ESPN.com, Collison's former teammate of nine seasons Kevin Durant will attend the ceremony.
"That group was so special, that whole group from 2010 until I left there, it was special," Durant told ESPN. "It's about time for us to let go of all that extra stuff, and just come together—especially around this time, because it's Nick."
During their time together with the team, Durant and Collison saw the franchise reach four Western Conference finals and the 2012 NBA Finals.