John McEnroe: 'Roger Federer will struggle'

Roger Federer in the ATP Finals semi-final against Andy Murray
© PA Photos
John McEnroe dismisses Roger Federer's chances of winning a fifth Australian Open title.

John McEnroe has tipped Novak Djokovic and Andy Murray to succeed at the Australian Open ahead of Roger Federer.

The 53-year-old believes that the Melbourne heat - due to peak at 97 degrees Fahrenheit on Thursday - will take its toll on the Swiss, who has won the tournament four times during his illustrious career.

Federer opens his campaign against Benoit Paire later in the day session of the second day.

"Djokovic and Murray to me are the two biggest favourites and Roger is going to have a tougher time winning majors, particularly if the heat becomes a factor," said McEnroe.

"At his age it's not easy to bounce back as quickly and play best-of-five sets, but it's also very difficult for anyone besides those guys to be able to beat at least two if not three of them, so that would be very unlikely."

McEnroe reached the semi-final of the Australian Open in 1983.

Roger Federer in the ATP Finals semi-final against Andy Murray
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ATP RankingsPoints
1Scotland flag Andy Murray11,690
2Serbia Novak Djokovic8,085
3Switzerland Stanislas Wawrinka5,695
4Switzerland Roger Federer5,125
5Spain Rafael Nadal4,235
6Canada Milos Raonic4,165
7Japan Kei Nishikori4,010
8Croatia Marin Cilic3,565
9Austria Dominic Thiem3,385
10Belgium David Goffin2,975
11France Jo-Wilfried Tsonga2,915
12Bulgaria Grigor Dimitrov2,880
13Czech Republic Tomas Berdych2,870
14Lucas Pouille2,516
15United States Jack Sock2,450
16Australia Nick Kyrgios2,425
17France Gael Monfils2,410
18Spain Roberto Bautista Agut2,145
19Albert Ramos-Vinolas2,135
20Pablo Carreno Busta2,025