Is his time up?

Have the rest finally worked out how to play against him?

Does he need to change his way of playing?

Will his present way of playing physically destroy him?

Some questions being thrown around in the tennis World this week after his straight sets defeat by Cilic.

Have the pack and their teams found the chink in his armour, and is his armour not as strong as it has been.

If you think that on our planet, we may play against one player at least once a month at club level, and in league tennis a couple of times a year.

Up to this defeat, he had never ever played Marin Cilic in any event.

So was it a one off, or is this a sign of things to come.

What do you think out there?