Nick Collison will retire after 15th Thunder season, cementing 'lifer' status
Collison retires after 15-year NBA career, Sports
Oklahoma City Thunder retire Nick Collison's No. 4 jersey
Thunder: OKC staple Nick Collison returning on 1-year deal
Mr. Thunder' on having OKC's first retired jersey and why KD should join him one day - ESPN
Nick Collison 'coming up on the end' of his NBA career - KU Sports
NBA's OKC Thunder announce retirement of Iowa Falls and Kansas basketball legend Nick Collison's number
Thunder to retire Nick Collison's jersey
It's Time to talk about retiring Nick Collisons Oklahoma City Thunder jersey - Welcome to Loud City