"It's the peak of her career right now," said Bob Bryan, whose twin brother Mike won the 2015 French Open mixed-doubles title with Mattek-Sands.
Startling screams as Mattek-Sands injures knee at Wimbledon →
"There was a period in our career where we were knocking down a lot of those records and hitting a lot of numbers," Bob Bryan said. "Now we kind of just want to do a little more of it, go out with a bang. We don't want to limp out of the game."
Kontinen, Peers thwart Bryans' bid for 17th major in doubles →