Serena Williams has been enlisted as Secret Deodorant’s latest brand ambassador, partnering with the brand to promote gender equality in sports.

The US tennis champion took to Instagram to announce the news, posting '@secretdeodorant has always been a staple in my life. But mostly I have stood back and admired how much they do to support women’s equality. I am excited to collaborate with Secret to make sure that women who put in equal sweat and work have equal opportunities to succeed'.