Nick Kyrgios has suffered an upset first-round loss to local teenage wildcard Denis Shapovalov at the Toronto Masters.
Kyrgios, the 11th seed, went down 7-6(2) 3-6 6-3 to 17-year-old Shapovalov in a day of mixed fortunes for Australia, with Bernard Tomic winning through to the second round.
Some believe that Kygrios' loss may have been influenced by his participation in worldwide phenomenon, Pokemon Go.
The tweets perhaps poorly timed as Kygrios went down to Shapolapov shortly after.
Fans were then quick to blame the app for Kygrios' performance:
In an exchange with one twitter user, Kygrios defended his use of the app.
After the match, Kygrios was humble in defeat and had kind words for the young Canadian.
But couldn't help himself when it came to throwing a little shade his country's way: