First time Fed's played in Perth for 15 years apparently. Might be an opportunity for you to see the great one @Bert!
Your post prompted me to look back at Fed's Hopman Cup career @masterclass and I see he won the tournament with Martina Hingis back in 2001 before playing his last one back in 2002.
I saw him playing a few times in Paris when I was there in France but I won't miss this opportunity... They usually manage to have one or two big names, especially since they play in the "Perth Arena" with the similar roof as Australian Open, but I would be curious to know how much they pay to have him