The seven-time grand slam tournament winner accepted a wildcard to compete in the Mubadala Citi DC Open this week.

Italy's Matteo Arnaldi saved four match points en route to a 4-6, 6-2, 7-6 (2) comeback win over Germany's Daniel Altmaier in the opening round of the Mubadala Citi D.C. Open on Monday in Washington.

In a new Daily Dose of Social Media, ATP and WTA stars are increasingly eyeing the big challenges of the US Open Series, with ...