U.S. tennis pro Mackenzie ("Mackie") McDonald joins host Carl Bialik to talk about his five-set Australian Open thriller against Grigor Dimitrov; what he learned from his first coach,Rosie Bareis; what he gained by playing college tennis; and what he thinks of Tennys Sandgren, the surprise Australian Open quarterfinalist who beat McDonald four times last year. (Though this political science major says he never talks politics.)

Produced and edited by Jorge Estrada, with music by Lee Rosevere.

Mackie on Twitter: https://twitter.com/mackiemacster

2012 ZooTennis interview with McDonald: http://tenniskalamazoo.blogspot.com/2012/10/mackenzie-mcdonald-commits-to-ucla.html