Andy Murray will have to contend with the most demanding summer of his career after sending Great Britain through to a Davis Cup quarter-final against Serbia.
The sides, who between them boast the top two players in the world in Murray and Novak Djokovic, will clash in July, less than a week after the Wimbledon final.
That is followed in quick succession by a Masters tournament in Canada, the Olympics - where Murray could play singles, doubles and mixed doubles - another Masters in Cincinnati, the US Open and a potential Davis Cup semi-final.
Cincinnati appears the obvious one to skip but, even then, trying to peak at the right times will be hugely challenging.
Murray said: "I think you can focus on all of them but you also have to be realistic about your performance. You are unlikely to play your best in all of them and physically you are unlikely to feel perfect.
"Wimbledon should be fine and the Davis Cup, but it is the accumulation of weeks and matches that you play, so by the Olympics and the US Open I would imagine you start to feel fatigued.
"It is completely normal and that is why with your team you have to be forward thinking and planning days off in advance. Even if it is just a couple of days off, after the Davis Cup, three or four days, they add up.
"After the Olympics, if it means missing Cincinnati and taking a week off ahead of the US Open, it is just about being smart, managing your time and body as best as you can."
The packed calendar made it all the more surprising that Murray committed so strongly to playing in as many ties as Britain have in the competition this year.
Djokovic has not yet followed suit and it will be interesting to see whether Murray's stance forces his hand.
The pair were both engaged in titanic battles for their respective countries on Sunday, with Murray staving off a Kei Nishikori fightback to win in five sets and clinch victory over Japan.
Djokovic's situation was even more perilous, with Serbia 2-1 down to Kazakhstan overnight and the world number one trailing Mikhail Kukushkin by two sets to one.
But, like his rival, he found a way to win, taking four hours and 57 minutes, three minutes longer than Murray.
As the hosts, Serbia will choose the court surface, and it is not an easy decision. Most teams playing at home to Britain opt for clay but that may not favour Serbia anyway and, with the Olympics to be played on hard courts, that is the logical choice.
Murray said: "It is obviously a tough match away from home. That gives them a slight advantage.
"Novak plays great on all surfaces - I am not suggesting he does not play well on clay - but you would like to think he would get to the end of Wimbledon, so going to a clay court is a great change, and I don't think it is (Viktor) Troicki's best surface or (Nenad) Zimonjic.
"I think all of them probably play their best tennis on hard courts and, with the Olympics just a few weeks away, I imagine the Olympics would be quite high on Novak's priority list with it being on a hard court."
The commitment of the top players to the Davis Cup has been distinctly variable over the past few years.
Since Murray and Djokovic joined Roger Federer and Rafael Nadal at the top of the game, none of the quartet have faced each other in Davis Cup.
A clash between the top two would be a marquee moment for a competition that has many detractors, but Murray insists it is a welcome boost rather than a necessary one.
It said: "I don't know how important it is for the competition. It seems just fine. I don't know what it has been like at the other ties but we have played in a 9,000 stadium. In Serbia as well this weekend it would have been packed.
"Every time I play against a Novak - when the best people in the world play against each other - fans enjoy seeing it, which is why anybody who came to watch the game against Kei would have been entertained.
"It was a tough match but, when you get the best players in the world playing against each other on a regular basis, that can only be good for the sport."
Source: PA
