"A few of us who are around the sixty mark don't play that much these days and if you are taking on a couple of guys in their forties it is very difficult"

John Newcombe is referring to the physical needs of playing tennis. He is recommending that as players reach their sixties, they are less able to compete at the very same level as those in their forties. This is because of the physical strain of playing tennis, which can be challenging for older gamers to handle. Newcombe is suggesting that when betting more youthful players, it can be tough for those in their sixties to maintain. He is emphasizing the value of physical conditioning in tennis, and how it can be an obstacle for older gamers to keep their competitive edge. This quote highlights the value of remaining physically active and fit, even as we age, in order to stay competitive in sports.