The three-time grand slam champion has emerged as a feminist figure in tennis, notably hiring Frenchwoman Mauresmo as his coach from 2014-16. "But he's 31. Ten years ago, if he retired at 31, we will say he had a great and very long career".
Porteous also posted on Twitter: "Fraser Murray and I couldn't have asked for a better role model".
A tearful Andy Murray says the Australian Open could be his last tournament because of a hip injury that has hampered him for nearly two years. "He has fought all his career and Monday's match will be the same", he said.
Federer's hope is that it is him and not his body deciding when it's time for him to finally walk away from tennis.
The annual grass court championship in London is seen by most as the flagship tournament on the tennis calendar and, much like Murray, Federer sees it as an ideal stage for him to step down when the time comes.
"[But] now he's beaten Federer and then Djokovic in London".
The world number one added: "The decision hasn't been made on the president".
Kyle Edmund, who has replaced Murray as the country's highest-ranked man, meets former Wimbledon finalist Tomas Berdych at about 05:00 GMT in the match preceding Murray's potential farewell match on Melbourne Arena.
To say the Brits have been handed a tough set of draws is a massive understatement, but Harriet Dart will be relishing the opportunity to open Monday's play on the Rod Laver Arena against five-time Grand Slam victor Maria Sharapova.
Aside from three matches and three wins in Perth at the Hopman Cup, where Williams' toughest opponent had been world No.49 Belinda Bencic, the 37-year-old has kept a low profile since her dramatic capitulation in NY. Raonic won their last meeting at 2016 Queen's in three sets.
He married his long-time girlfriend Kim Sears at Dunblane Cathedral in 2015 and won his second Wimbledon singles title the following year.
"She has been so successful in the game. This year's so long, there's so many more opportunities after this tournament to do well", he said.
"I feel good. If I am not feeling good, I will not be here", he said. "We like him. He doesn't have many enemies, to be quite honest", the world number three said of the three-time Grand Slam champion and double Olympic gold medal victor.
"I can't believe it's already been a year".
And Djokovic said Sunday he was delighted to be back in Melbourne where his rise to greatness all began in 2008 with his first Grand Slam win.
The 24-year-old Yorkshireman is aiming to replicate his run to last year's semi-finals, but has been given one of the toughest first-round draws possible in the shape of Berdych.
Kyle Edmund vs Tomas Berdych Will Edmund crash out?
"But there's a group of players that I think everyone thinks is very hard to play against, especially in Grand Slams", Osaka added. Being a good ally is about using your influence to elevate and support those with less power than you.