In his third-round match against John Millman, Federer won six straight points when he was two points away from defeat.
Today, in his quarterfinal match against Sandgren, Federer won seven points when he was one point from defeat.
Somehow, the 38-year-old survived this match, and managed to surpass his earlier escape in incredulity.
“Gotta get lucky sometimes, I’ll tell you that,” Federer told Jim Courier after the match. “I think I got incredibly lucky today.
“I don’t deserve this one, but I’m standing here, and I’m very, very happy.”