Serena Williams in 2013: ‘I only want to play girls, because I don't want to be embarrassed.’

Former tennis star John McEnroe has drawn controversy yet again – this time, for daring to say that men and women are different.

In an interview with NPR, McEnroe said that Serena Williams was the “best female player ever” but wouldn’t say she was the greatest athlete of all time, noting that she would rank 700th or so if she were competing against men.

Back in 2013, Williams herself acknowledged that men are faster on the court and can serve and hit harder; basic biological differences are why men and women are divided by gender in sports.

“The men are a lot faster and they serve harder, they hit harder; it’s just a different game,” she said during an interview with David Letterman in 2013. “I love to play women’s tennis. I only want to play girls, because I don’t want to be embarrassed.”

On Thursday’s “The Glenn Beck Radio Program,” Glenn Beck and the guys couldn’t believe how much people in denial if our society is denying that men and women’s bodies are different.

“It’s not even a knock on Serena Williams” to say she would be No. 700 in the world, Stu asserted. Even the greatest female tennis player would struggle to play any professional male tennis player.

To see more from Glenn, visit his channel on TheBlaze and listen live to “The Glenn Beck Radio Program” with Glenn Beck, Pat Gray, Stu Burguiere and Jeffy Fisher weekdays 9 a.m.–noon ET on TheBlaze Radio Network.