Pouria Zeraati was stabbed in the leg outside his south-west London home Friday.
He is recovering in hospital, from where he posted a picture on social media over the weekend.
Two unidentified men were reported to have committed the assault, before jumping into a waiting getaway car.
Iranian TV presenter Pouria Zeraati posted a picture from hospitalPouria Zeraati/X
Matin took to social media Saturday, saying Iran had no link to this story of this so-called journalist.
He wrote that the claim was without evidence.
A spokesperson for the Met said the investigation into the attack on Zeraati remained in very early stages.
