Tom Perrotta, who writes about tennis for The Wall Street Journal, joins Thirty Love host Carl Bialik to talk about Rafael Nadal's five-set defeat of Dominic Thiem, Rafa's unusual tactic that's catching on, and Serena Williams's bid for her 24th Slam title.

Music by Lee Rosevere.

Perrotta on Twitter: https://twitter.com/TomPerrotta

Perrotta on Nadal's tactic: https://www.wsj.com/articles/why-rafael-nadal-returns-serve-from-the-back-wall-1536153459