"Being an Asian American doesn't mean we don't experience poverty and racism," Lin shared on social media late Thursday. "Being a 9-year NBA veteran doesn't protect me from being called 'coronavirus' on the court."
Lin didn't state when the incident took place. The G League is now investigating Lin's claim, ESPN reported.
Racist attacks have soared against the Asian community amid the pandemic as COVID-19 first emerged on the global radar in Wuhan, China.
Between March and December last year, the organization Stop Asian American and Pacific Islander Hate recorded nearly 3,000 reports of anti-Asian hate incidents nationwide.
The 34-year-old athlete, who formerly played point guard for the New York Knicks and the Brooklyn Nets, now plays the NBA's G League team the Santa Cruz Warriors, an affiliate of the Golden State Warriors.
Lin encouraged the public to speak up against racist behavior in his post.
"We are tired of Asian American kids growing up and being asked where they're REALLY from, of having our eyes mocked, of being objectified as exotic or being told we're inherently unattractive," he wrote.
"We are tired of being invisible, of being mistaken for our colleague or told our struggles aren't as real," he added.
Santa Cruz Warriors officials did not immediately respond to ABC News' request for comment.
Golden State Warriors coach Steve Kerr said Friday he wants the NBA to investigate Lin's claim.
"Really powerful. I applaud Jeremy for his words and echo his sentiments regarding racism against the Asian American community," Kerr said per ESPN.
Lin, who was born in California to Taiwanese parents, was the first Asian American player to win an NBA championship in 2019 when the Toronto Raptors beat the Golden State Warriors.