– Australian tennis pro Li Tu went viral on social media despite his loss at the U.S. Open
– Tu received praise for his honesty, humor, and human moments during the match
– He shared candid moments in interviews, including his reaction to facing high-profile opponent Carlos Alcaraz
– Tu has a bittersweet backstory, including his mother’s battle with and eventual passing from lung cancer
– Tu credited his mother’s memory for his victory during the U.S. Open qualifiers
– Fans praised Tu for his resilience and positivity in the face of challenges