Holding Grand Slams in costly "bio-bubbles" may not be sustainable for a second season despite the financial edge the majors enjoy over other tournaments, ATP chief Andrea Gaudenzi has told Reuters.
The sport's big four tournaments have not been immune to the impact of the COVID-19 pandemic, with Wimbledon canceled for the first time since World War II last year and the most recent editions of the other three held in bio-secure environments.
"Most of them run a federation as well so they're also in charge of tennis development throughout the country," Gaudenzi, the chairman of the men's tour, said recently.
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