Andreescu struggles through injury, drops match to Rogers at Silicon Valley Classic

Canada's Bianca Andreescu struggled through a back injury and lost her first round match to American Shelby Rogers in straight sets (6-4, 6-2) at the Mubadala Silicon Valley Classic in San Jose, Calif., on Tuesday.

Andreescu took numerous medical timeouts throughout the match, showing visible discomfort.

The Mississauga native was to receive an MRI on Tuesday and is scheduled to play in next week's National Bank Open in Toronto.

WATCH | Rogers takes down Andreescu in straight sets:

The No. 45-ranked Rogers served up four aces in the match, while Andreescu committed five double faults.

Rogers will face top-seeded Maria Sakkari of Greece on Thursday in the round of 16. Sakkari had a bye through the first round.

Bianca Andreescu in tears during a changeover having taken a medical timeout earlier. Trailing 6-4 to Shelby Rogers and had her serve broken in the second set here at the Silicon Valley Classic in San Jose. Continuing to play.<br><br>Bianca is scheduled to play in Toronto next week.

In other Canadian tennis action, Denis Shapovalov and his American doubles partner Denis Kudla fell in straight sets (6-4, 6-4) in the first round of the Citi Open to India's Rohan Bopanna and Matwe Middelkoop of the Netherlands.

Osaka hit 11 aces and saved seven of eight break points in the hard-court tournament that serves as a tuneup for the U.S. Open.

Osaka had not played anywhere since a first-round loss to Amanda Anisimova at the French Open on May 23.

These fans got the selfie of the day! <a href="https://twitter.com/naomiosaka?ref_src=twsrc%5Etfw">@naomiosaka</a>, 96-year-old fan Priscila from Stockton, and her family!