The Challenger Tour frequently showcases some of the most fascinating, challenging, and unusual narratives in tennis.
Before advancing to the primary ATP Tour, players compete on the Challenger Tour.
Competitors ranked outside the top 100 globally often fill the rosters in tournaments held across various locations.
This week features three Challenger Tour tournaments in Europe, comprising two on clay and one on hard courts.
- Izida Cup II – Sofia, Bulgaria (Clay)
- Schwaben Open – Augsburg, Germany (Clay)
- Crete Challenger IV – Hersonissos, Greece (Hard)
A peculiar incident unfolded at the Crete Challenger IV event, resulting in one player’s disqualification during a match.
Mats Rosenkranz Disqualified in Greece for Showering Mid-Match
German player Mats Rosenkranz, currently ranked 358th worldwide, started strong in Greece with a victory over local favorite Petros Tsitsipas, brother of Stefanos Tsitsipas.
In the second round, he faced Italy’s Pietro Orlando Fellin, a qualifier.
After winning the initial set 7-5, Rosenkranz decided to take a shower in the restroom before returning to the court.
Upon his return, he was taken aback to find out that he had been disqualified from the tournament.
Players are prohibited from showering during matches, except in best-of-five-set Grand Slam events, a rule established to curb possible doping during play.
Rosenkranz argued that he was unaware of this rule and explained the brevity of his shower, stating, “I only took a ten-second shower.”
Unfortunately for him, his appeals were ignored, and his Italian rival advanced to the quarterfinals despite losing the first set.
Interestingly, Rosenkranz is not the first to face disqualification for this reason; in 2022, American Nicolas Moreno de Alboran was also disqualified for showering.
During a Challenger Tour match in Seville against Federico Delbonis, de Alboran quickly showered to remove sand from his clothes before the third set.
His opponent informed the officials, leading to de Alboran’s disqualification.
Frustrated with his disqualification, the American expressed his thoughts on Instagram after the match.
“I fell multiple times during the second set, and sand got into my underwear, causing irritation that led to bleeding after a while. After winning the second set, I went to the toilet to change,” he explained.
“I decided to rinse off the sand using the shower handle since it wouldn’t come off with a towel due to excessive sweating.”
“My opponent reported my shower to the umpire, leading to my default. I won’t receive any points or prize money, and I have to pay for my hotel stay during the tournament.”
With both de Alboran and Rosenkranz facing penalties for showering, future players may become more cognizant of this rule.
Who Has Excelled on the Challenger Tour This Year?
Rosenkranz will miss the opportunity to capture his first Challenger title this season in Greece, but who has emerged as the standout player on the second tier tour in 2025?
Croatian Borna Coric has secured four Challenger titles this year, seeking to reclaim his status in the top ranks of men’s tennis.
| Tournament | Country | Surface | Final Opponent | Score |
| 2025 Lugano | Switzerland | Hard (Indoor) | Raphael Collignon | 6-3, 6-1 |
| 2025 Thionville | France | Hard (Indoor) | Arthur Bouquier | 6-4, 6-4 |
| 2025 Zadar | Croatia | Clay | Valentin Royer | 3-6, 6-2, 6-3 |
| 2025 Aix-en-Provence | France | Clay | Stan Wawrinka | 6-7, 6-3, 7-6 |
His most notable victory came in Aix-en-Provence, where he triumphed over three-time Grand Slam champion Stan Wawrinka on clay.
Coric leads with four titles, while Emilio Nava and Nicolai Budkov Kjaer are close behind with three each.
As the 2025 season progresses, it remains to be seen if either player can surpass Coric for the top spot.

