NBA superstar Kevin Durant called a former ESPN writer who criticized his club for extending a teammate's contract a 'dumbass' on Twitter. The Oklahoma City Thunder signed forward Nick Collison to a two-year extension yesterday and basketball writer Chris Palmer ripped into the team after Durant, 26, offered up his congratulations. Durant, the reigning NBA MVP, dismissed Palmer's comment as if he was swatting away an opponent's shot on the court. Scroll down for video Kevin Durant (left) stuck up for teammate Nick Collison (right) on Twitter after former NBA reporter Chris Palmer criticized the Oklahoma City Thunder for giving him a contract extension
@highlight
The Oklahoma City Thunder forward fired back at  writer Chris Palmer
@highlight
Palmer criticized team for signing Nick Collison to a contract extension
@highlight
Durant tweeted that Palmer 'got fired for being a dumbass' in response
Oklahoma City Thunder
Oklahoma City Thunder
Oklahoma City Thunder
Collison, 34, is averaging 3.8 points, 3.4 rebounds and 1.2 assists in 41 games for @placeholder this season.
Chris Palmer
Palmer
Chris Palmer
Chris Palmer
Palmer
Palmer
@placeholder's last piece for ESPN was in June 2013 according to the network's website.
Kevin Durant
Durant
Durant
Kevin Durant
Durant
This is not the first time that Palmer and @placeholder have beefed on social media.