Williams was beaten by Naomi Osaka recently however the match is more remembered for Williams’ outbursts at umpire Carlos Ramos.
Serena Williams was given a code violation after her coach Patrick Mourataoglu appeared to be instructing her from the stands.
The former world No 1 then proceeded to smash her racket and was deducted a point before she was later forced to forfeit a game after she continued her row with umpire Ramos.
Williams took exception to Ramos and accused him of being a “thief” and insisted he will never officiate one of her matches again “as long as she is on a court”.
Following the match, the uproar continued with many on both Williams’ and Ramos’ side.
And Roger Federer has had his say, with the Swiss star believing tennis can learn from the controversy.
“It’s interesting but I think it’s important to look at it,” Federer told KVUE.
“Every umpire has their own style, it’s just how it is in any sport.
Roger Federer has weighed in on the Serena Williams controversy
Serena Williams was involved in a row at the US Open final
“In tennis you might have an umpire that gives more coaching violations and another guy goes more to time violation.
“You might get one guy who knows that this guy misbehaves quite often so I’ll give him a warning quicker or I’ll be more lenient with a guy because he’s a nice guy and just can’t control himself. I think it really depends on the situation.
“I hope it’s not the case (that there is gender bias) but I think what happened, obviously there was mistakes along the way and there should be more discretion sometimes.
“At the same time, they have to do their job, that’s what we want them to do.
“It’s been tricky but a really interesting case to study.”
Roger Federer has won 20 Grand Slam titles
Former British No 1 Anne Keothavong admits sexism does exist in tennis and across sport but does not think Williams was a victim.
“The way Serena behaved, she was under a lot of pressure in that match, it wasn’t going her way,” Keothavong said.
“She just couldn’t let it go and I do feel she went over the top.
“I think sexism in tennis and across sport exists, I’m not beating around the bush about it.
“But in this particular case, Carlos Ramos was doing his job.”