He just wants to catch 'em all, all the time. (AP Photo)

Nick Kyrgios is facing some backlash for admitting his love for Pokemon GO, a fast-trending new game that has people of all ages losing their minds, and forgetting about the real world.

On Monday, the world No. 19 was stunned in the first round of the Rogers Cup by 17-year-old Canadian Denis Shapovalov (ranked No. 370). He blamed it on a bad day, but online critics jumped down his throat for his extreme dedication to catching Pokemon.

For those somehow unaware of how the game works, you walk (or run) around the real world staring intensely at your phone looking for Pokestops, where you throw Pokeballs (and other weapons) to capture Squirtles, Charizards and all the rest of your childhood favorites. There's battles to win, gyms to take over and tools like incense that lure and help draw in Pokemon.

You can also pay (real) money for Pokecoins to help add premium items to your arsenal.

A 28-year-old named Nick (of course) became the first to catch 'em all last week after walking 95 miles in circles around New York City, but he's still missing some extremely rare ones (which may be hiding in Antarctica, for all anyone knows).

Kyrgios is hardly the only twenty-something obsessed with catching virtual creatures on his iPhone, but the Australian should still probably prioritize his booming tennis career over chasing Pikachu. Naturally, he has gotten a little defensive about it.

If anyone is going to become a Pokemon master, it’s going to be a tennis pro. They travel around the globe, have unlimited international data plans, can focus intensely for hours and are insanely competitive.

What will Kyrgios win first: Pokemon GO or a Grand Slam?