Marshawn Lynch feels he has achieved "something special" by becoming a minority investor in the Seattle Kraken alongside Macklemore.
Former NFL running back Lynch spent the best part of his career with the Seattle Seahawks.
He was part of the Seahawks team that won Super Bowl XLVIII, scoring a rushing touchdown in the title game as Seattle beat the Denver Broncos.
Lynch had led the NFL in rushing TDs (12) in the regular season and did so again the following year (13), again scoring in the Super Bowl but this time in a defeat to the New England Patriots.
The five-time Pro Bowler announced his retirement after the 2015 season but returned to the NFL and eventually the Seahawks, finishing his career in Seattle in 2019.
And now Lynch is again part of the sports scene in the city, with he and rapper Macklemore – a Seattle native – welcomed on board by Kraken owner Seattle Hockey Partners.
"I've been a part of a lot of things, but this is something I never would have imagined," Lynch wrote on his Twitter page.
"As a young hyena I always dreamed of playing on a professional team but owning one is something special.
"Thank you @SeattleKraken, shout out to @macklemore. Seattle, I'm here. Stand Up!!!"
The Kraken are in their inaugural season in the NHL but sit bottom of the Western Conference's Pacific Division with a 24-44-6 record.