We get a mixed double match on Thursday with Serena playing against Federer.
Federer and his team-mate Belinda Bencic won last January’s Hopman Cup and will be back in Perth to try and defend their title. Federer admits squaring off against Williams is a once-in-a-lifetime kind of match.
“We’ll probably play it down a little bit and say it’s not that big of a deal for us, it’s just another tennis match, but it really isn’t because it’s probably going to happen once and never again,” he said.
“That’s why I hope we’re both going to be injury-free when that day comes around.”