He appreciates that rumour and gossip is part of modern day football, but is disappointed to have once again seen his future on Wearside called into question.
"I don't think there is much more to say, other than the fact that anybody can get on to Twitter and say whatever they want," O'Neill told Sky Sports.
"The very fact that no-one can verify the story makes it a bit disappointing. It was absolute nonsense.
"It's the name of the game. That's what's happening nowadays. It happened once before way back a couple of years ago. These things, there are nothing in them."