Roger Federer and Rafael Nadal show 'freakish' motivation, says Pat Cash

    Roger Federer, 36, and Rafael Nadal, 32, have split the last six tennis majors between them. Their streak started at the 2017 Australian Open in Melbourne, which Federer won.

    Story highlights

    • Federer and Nadal have won a combined 37 majors, including the last six
    • Federer, 36, is the favorite to defend his Wimbledon title
    • 1987 Wimbledon champion Cash talked exclusively to CNN Sport

    (CNN)Lesser mortals would be winding down their careers at this stage, but Roger Federer and Rafael Nadal have won the last six grand slam titles between them and show no sign of slowing down.

    Federer will be bidding to extend his record to nine Wimbledon crowns when the tournament begins next week, a little over a month shy of his 37th birthday.
      Nadal won a record-extending 11th French Open title last month, shortly after turning 32.
      Australia's Pat Cash, who won Wimbledon at the age of 22 in 1987 for his sole major title, told CNN Sport at Roland Garros he is amazed by their "freakish" motivation bordering on "obsession."

      'Obsession'

      "I don't understand how he [Nadal] does it, I really don't know. It's some form of obsession, there is no doubt about it, I don't know what drives him, but it has to be," said Cash, who now coaches American Coco Vandeweghe.
      "Federer as wel