The world number one believes that women would be at greater risk of injury if they were to play best-of-five set matches at the major tournaments like the men do, even though she thinks she is physically strong enough to cope with the increased workload.
Sabalenka - who eased to a straight sets victory over Canada's Carson Branstine in her Wimbledon opener on Monday (30.06.25) - said: "Probably physically I'm one of the strongest ones, so maybe it would benefit me. But I think I'm not ready to play five sets.
"I think it's too much on the woman's body. I think we're not ready for this amount of tennis. I think it would increase the amount of injuries. So I think this is not something I would consider."
Female players currently play best-of-three sets at all events while men play best-of-five at the Grand Slams and best-of-three at the other tournaments.
Sabalenka was asked about the epic French Open final between Carlos Alcaraz and Jannik Sinner last month - which lasted for five-and-a-half hours - and admits that she wouldn't enjoy the experience as a player, even if it delighted the fans.
The three-time major winner said: "For someone watching, it's amazing to see five hours of great tennis.
"But I'm not really jealous to stay there for five hours as a player. I don't know how many days they needed to recover after that crazy match."
World number two Coco Gauff says she is also opposed to a change in length for women's matches.
She said recently: "It would favour me just from a physicality standpoint. But I do think it would kind of be a big change for the tour. I think it would be fine just keeping it like how it is."