Alex Michelsen defeats longtime friend and fellow American Learner Tien to advance to his first Masters 1000 in Toronto.

MELBOURNE, Australia — Learner Tien and Alex Michelsen were born about 15 months apart and first crossed paths a decade ago when they were playing in Southern California tennis tournaments for kids.

Tien and Michelsen share a mantra with Shelton, who has been ranked as high as 12th — he’s currently 14th — after reaching the Australian Open semifinals before losing to the eventual ...

MELBOURNE, Australia — Learner Tien and Alex Michelsen were born about 15 months apart and first crossed paths a decade ago when they were playing in Southern California tennis tournaments for kids.