Nick Collison's No. 4 will be the first number retired by the Oklahoma City Thunder.

The Thunder announced Saturday they'll retire Collison's jersey in a ceremony on March 20.

"I am thrilled that Nick Collison will be the first Thunder player to have their number retired in Oklahoma City," said Thunder chairman Clayton I. Bennett. "He has cemented himself as part of the fabric of this community and our organization by setting an example of commitment, hard work and authenticity. Congratulations, Nick."