Alexander Zverev has become one of the most compelling stories at Wimbledon 2026, and not just for his tennis. The German star, who has reached the Wimbledon final, has been spotted using a mobile phone during his matches, and there is a very important medical reason behind it.
Zverev lives with Type 1 Diabetes, a condition that requires constant vigilance over blood glucose levels. Unlike many health challenges that can be managed quietly off the court, diabetes demands real-time attention, and that is exactly what Zverev's phone provides. He uses it to monitor his glucose readings during changeovers and breaks, ensuring he can respond quickly if his levels shift dangerously in either direction.
Tour rules generally prohibit phone use by players during competition, but exceptions exist for verified medical needs. Zverev's situation clearly qualifies, and officials have permitted him to keep the device accessible throughout his matches on the All England Club's famous grass courts.
What makes this particularly fascinating is how seamlessly modern technology integrates with elite sport. Continuous glucose monitors, which typically pair with smartphones via an app, allow users to track their levels in near real time without drawing blood. For a player competing at the highest level under intense physical and psychological stress, both of which can cause glucose fluctuations, this kind of monitoring is genuinely life-critical, not just convenient.
Zverev has spoken openly about managing his diabetes while competing on the world stage, and his run to the Wimbledon final stands as a powerful statement about what athletes with chronic conditions can achieve. His opponent in the final, Jannik Sinner, has acknowledged that Zverev poses a serious threat. TennisDraw users backing Zverev to go all the way will be watching that glucose monitor just as closely as every serve.
