Frances Tiafoe (back) retires from fourth-round match at Cincinnati Open

(Photo credit: Aaron Doster-Imagn Images)

Tenth-seeded American Frances Tiafoe was forced to retire Wednesday due to a lower-back injury down 4-6, 1-3 when facing Denmark’s Holger Rune, the No. 7 seed, at the Cincinnati Open in Mason, Ohio.

Tiafoe…

Continue Reading