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 Murray9,390
2Spain Rafael Nadal7,285
3Switzerland Stanislas Wawrinka6,175
4Serbia Novak Djokovic5,805
5Switzerland Roger Federer4,765
6Canada Milos Raonic4,150
7Croatia Marin Cilic4,025
8Austria Dominic Thiem3,895
9Japan Kei Nishikori3,785
10France Jo-Wilfried Tsonga3,040
11Bulgaria Grigor Dimitrov2,980
12Alexander Zverev2,860
13Belgium David Goffin2,785
14Czech Republic Tomas Berdych2,570
15Lucas Pouille2,570
16France Gael Monfils2,545
17Pablo Carreno Busta2,360
18United States Jack Sock2,335
19Spain Roberto Bautista Agut2,110
20Australia Nick Kyrgios2,110