Anderson smashed Wesley Harms in a 10-2 win in Wolverhampton as he goes in search of his maiden Grand Slam of Darts title.
And while the 'Flying Scotsman' made light work of his opponent on the oche, both players seemingly accused each other of breaking wind on the big stage that left each of them playing through the smell.
Anderson said after the match: 'It definitely came from table-side and it was eggs, rotten eggs, but not from me.
'Every time I walked past there was a waft of rotten eggs so that's why I was thinking it was him.
Grand Slam of Darts LIVE scores: Latest updates from Wolverhampton
Grand Slam of Darts NINE DARTER: Watch Dimitri Van den Bergh's effort
It definitely wasn't me. I thought he had a s**t and I went 'That's dirty'.
'It definitely wasn't me. I thought he had a s**t and I went 'That's dirty'.
'It was bad. It was a stink. Then he started to play better and I thought he must have needed to get some wind out.
'If somebody has done that they need to see a doctor. Seemingly he says it was me but I would admit it.'
Dutchman Harms had his own view of the unsavoury incident though, suggesting his Scottish rival was responsible for the foul smell.
'It'll take me two nights to lose this smell from my nose. I didn't know things like this can also happen within the PDC.'
Anderson was not happy at the accusation though, adding: 'If the boy thinks I've farted he's 1010 per cent wrong. I swear on my children's lives that it was not my fault.
'I had a bad stomach once on stage before and admitted it. So I'm not going to lie about farting on stage.'
It seems it's not the first time a darts player has purposely (or accidentally) tried to put off their opponent with some foul play.
Michael Van Gerwen reveals his biggest strength, delivers prediction
Grand Slam of Darts prize money: How much cash is on offer?
But world No 4 Anderson refused to name the prime suspect.
'One player did it quite a lot but I'm not going to say any names,' he said.
'Everyone will know who I'm talking about.
'But I was born with manners if I actually did that I'd go as far away as possible to the edge of the stage.'
Anderson is in action tomorrow when he takes on Michael Unterbuchner looking to book his place in the semi-final.