Carlos Alcaraz's recent public appearance at a bullfighting event hasn't gone down well with the tennis community on social media, as evident by their reactions. The Spaniard has attracted widespread criticism for his apparent endorsement of a bull fight at the Plaza de Toros de La Condomina in Murcia on Monday (September 11).The incident took place shortly after Alcaraz was defeated by Daniil Medvedev in a four-set thriller in the semifinals of the 2023 US Open. The loss prevented the Spaniard from defending his title in New York.Several tennis fans were outraged that Carlos Alcaraz was participating in his country's controversial traditional sport, and they took to social media platforms to express their displeasure. One Reddit user went so far as to call it "among the worst scandalous public appearances" that they could think of."This is among the worst scandallous public appearances I can think of... such a useless and tyranical activity, I can't believe it's legal in 2023," the user wrote.A screen capture of the comments on RedditAnother user, meanwhile, expressed their disappointment with Alcaraz on X (formerly Twitter). They wrote:"Carlos Alcaraz smiling and enjoying a bullfight in Murcia. He took some friendly photos with the organisers too. Just terrible @carlosalcaraz. If anybody doesn't understand the severity of bullfighting, please do some research online, it goes beyond "culture" and "tradition"."Another account posted on X:"Bullfighting it still acceptable in 2023?"Here are a few more reactions from tennis fans:A screen capture from RedditA screen capture from RedditCarlos Alcaraz withdraws from the Davis Cup 2023 Finals, yet to announce his next tournamentCarlos Alcaraz pictured at the 2023 US OpenCarlos Alcaraz has been playing almost non-stop since the French Open in July. The cumulative wear and tear of his 2023 season took its toll eventually as Alcaraz failed to produce his best tennis during his semifinal loss to Daniil Medvedev.Alcaraz subsequently withdrew from Spain's Davis Cup Finals group stage squad. He was expected to lead the team in the absence of his legendary compatriot Rafael Nadal, but that was not to be.Alcaraz has not yet announced where he will play next. However, the Spaniard could very well make a comeback at this year's Shanghai Masters, which will begin on 4 October.If the 2022 US Open champion is unable to compete in the ATP Masters 1000 tournament, he will likely participate in the ATP 500 events in Basel or Tokyo in late October.