Serena Williams is being grand slammed for using her recent successful 31-pound weight loss to promote a GLP-1 company, RadarOnline.com can reveal.

Fans say the tennis champ is trying to "mislead" them with hidden advertisements as she showed off her svelte body. Article continues below advertisement

Williams recently signed a deal to become a brand ambassador for telehealth company Ro, which offers cheaper, generic versions of weight loss drugs like Ozempic or Wegovy.

The 43-year-old, who retired from professional tennis in 2022, will headline a multi-year national marketing campaign for their version of the highly coveted GLP-1 drugs.

On Thursday, the company released a trove of publicity shots featuring the 23-time Grand Slam winner using its medicine. She accompanied that w

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