A gastroenteritis virus and heavy pollen are disrupting the Madrid Open, forcing withdrawals, retirements, and sickened stars to gut out matches.
MADRID — Seven days into the Madrid Open, the players still on the grounds are dealing with a double hit: a stomach virus that keeps flaring up between matches and pollen that turns the air into an irritant.
The focus keyphrase. “Madrid Open stomach virus. ” is no longer just a headline—it’s the reason the field has looked unusually fragile. with illness spreading through the draw as the clay season tightens.. Withdrawals piled up early. and by the weekend the symptoms weren’t limited to one court. one day. or even one tour.
First came the withdrawals linked to illness.. Madison Keys, the 2025 Australian Open champion, pulled out on April 24.. The next day. Marin Čilić’s walkover added to the disruption after he said he had food poisoning and couldn’t reach the level needed for competition.. Other retirements followed in quick succession. signaling that this wasn’t isolated bad luck—it was something players seemed to be catching and dragging along with them.
Then the tournament atmosphere shifted again: pollen.. Around the Caja Mágica. the air has been thick with allergy-inducing grains. described as falling like pale “snowflakes” over the courts.. For athletes who spend hours breathing deeply in high-intensity rallies, that kind of exposure can do more than sting.. It can inflame airways, worsen congestion, and make breathing feel heavier right when match momentum demands precision.
Coco Gauff’s experience captured the scale of the problem.. She was vomiting in the bathroom between sets during her match against Sorana Cîrstea. teared up on and off while she fought through a three-set win. and later described it as the worst she had ever felt on a tennis court.. Her description of feeling “weird” the previous night. followed by nausea and then actual throwing up during play. matches a pattern that has been popping up across the tournament: discomfort that starts small. escalates quickly. and forces athletes to recalibrate their effort minute by minute.
In the same swing of events. Iga Świątek retired in the third set against Ann Li. saying she believed she had a virus after the last two days “were pretty terrible.” Her account reinforced the sense that players were not simply managing routine fatigue.. They were dealing with a body-level disruption—energy drain, weakness, and symptoms that don’t follow tennis logic.
The tournament has pushed back on speculation about the dining area.. Misryoum understands organizers’ message has been consistent: there is no issue with the food. and the problem is gastroenteritis—an ordinary virus that spreads the way many contagious illnesses do. with contact. shared spaces. and close proximity playing a role as players move from locker rooms to courts to common areas.. In a sport where timing. routine. and nerves all matter. even mild illness can force a recalculation of what “match readiness” actually means.
A virus spreads faster than match schedules
That’s why the pattern at the Madrid Open has mattered so much.. When multiple high-profile names report sudden GI symptoms within a short window. it changes what fans and officials pay attention to.. It also changes how players approach the rest of the week—whether they alter diets. tighten hygiene. or adjust how they handle practice and hydration.
Pollen adds a second stress test for lungs
This year’s conditions have been tough. shaped by warm. dry spring weather that encourages overgrowth around the Caja Mágica.. With climate patterns shifting and growing seasons extending. the risk of higher pollen counts becomes less predictable—and harder for tournament planners to neutralize with limited tools.
What players are really fighting: recovery. not just rivals
The larger story for fans is how little control players have once something contagious becomes part of the environment.. The larger story for the sport is how these disruptions expose a vulnerability that injury headlines often drown out.. On clay. where matches can stretch and recovery is everything. an illness that affects hydration. stamina. and concentration can reshape a draw as decisively as any tactical matchup.
If the second week brings any reduction in pollen. players will still likely carry the memory of how fast symptoms can swing a match.. And if gastroenteritis continues to circulate. expect the tournament to lean even harder into prevention messaging—because at this level. survival often looks like rest. simple meals. and getting through the next set without losing the next day.