A video of a China-developed humanoid robot playing tennis was posted on X on Sunday and was reposted and liked by Elon Musk on Monday with a brief comment “yeah,” drawing a total of 8.6K likes and sparking widespread attention and discussion. Developed by Galbot, the humanoid tennis robot can rapidly adjust its footwork and positioning, coordinate upper- and lower-body movements to execute swings, and return shots with precision to designated targets.