The reigning US Open champion drew inspiration in the form of WNBA star Sabrina Ionescu, pulling up to the Flushing Meadows practice courts rocking Ionescu's No. 20 New York Liberty jersey.
It was a move that didn't go unnoticed by the team's Twitter account -- or Ionescu, who also hit the RT button on ESPN's tweet.
Osaka's decision to don the jersey comes on the heels of the 23-year-old's first time attending a WNBA game on Friday night.
Despite Ionescu's squad, the hometown Liberty, getting worked 80-64 by the Phoenix Mercury -- New York is now 1-5 since the WNBA's Olympic break -- the tennis star was a huge fan of the experience.
An immaculate endorsement.
If Osaka wins the tournament, then New York is winning the WNBA Finals this year. OK, that's admittedly an aggressive take, but maybe the injury-laden Liberty will at least be able to turn it around in time to keep their playoff hopes alive.
Naomi Osaka warms up in Sabrina Ionescu jersey
Naomi Osaka is seen warming up in a Sabrina Ionescu Liberty jersey before her match at the US Open.