The fight to secure a place at the ATP World Tour Finals has reached its final battleground, and it would appear as though the pressure is getting to some players more than others.
Following the conclusion of the Paris Masters, the eight men to face-off in the season-ending competition at London's O2 Arena will be settled. There's plenty still to play for in the French capital too, Rafael Nadal's withdrawal through injury leaves four spots up for grabs.
One man still in the hunt is Milos Raonic. The Canadian has to win the tournament to guarantee his berth and managed to safely negotiate his way through a second round clash with American player Jack Sock.
It appears as though Raonic may have lost some vital support in his difficult feat to reach the Finals, however.
The Parisian crowd became upset with the hard-hitting star and launched a chorus of boos against him because of a lengthy toilet break; eight minutes to be precise.
The wee issue unfolded because the 23-year-old apparently refused to use to toilet he was led to because it didn't have a seat, and he then demanded to be taken to a better location in order to answer the call of nature (high-profile stars can be criticised for their whims, but can you blame him in this instance?)
Raonic described his version on the trauma after the match.“Whoever the escort who took me was, took me into a bathroom that had no seats on the toilet. So I didn’t want to squat, so I kept saying, ‘let’s go to another one’, and we ended up going to the locker room.”
Hopefully he found time in those eight minutes to wash his hands, Jack Sock - nor any other sock - wouldn't want those germs over him.
Thankfully for Raonic, he wasn't put off completely by the incident as the seventh seed fired down 19 aces and went on to win in three sets 6-3 5-7 7-6. Local favourite Richard Gasquet or Roberto Bautista Agut lie in wait for the third round.
Though he remains on course, Raonic could face a tough challenge to get to the Finals and join the already-qualified Novak Djokovic, Roger Federer, Marin Cilic and Stanislas Wawrinka.
Andy Murray's victory over Julien Benneteau in the second round leaves him needing just one more win to book his spot having taken on a heavy workload recently, this is his sixth tournament in as many weeks.
The British no.1's anticipated qualification would leave another three spots left. Kei Nishikori, Tomas Berdych, David Ferrer and Grigor Dimitrov, as well as Raonic, all have a mathematical chance of qualifying.
There are various permutations, therefore, to use a cliche, every match in Paris is vital. None of the remaining hopefuls can afford to slip-up, but at some point the pressure will have to give for somebody.