Ben Shelton's semifinal match at the Canadian Open was marred by a concerning incident that raised safety alarms. While competing against Learner Tien, Shelton nearly injured himself, prompting a reaction from Rennae Stubbs, former coach of Serena Williams. Stubbs took to social media to express her frustration, questioning the presence of a mat on the back of the court that could pose risks to players. Her comments reflect a growing concern over player safety in competitive environments, especially as the sport continues to evolve. Shelton's close call serves as a reminder of the potential dangers athletes face on the court, and the need for ongoing discussions about safety measures.