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\t\t<\/p>\n Serena Williams<\/strong><\/a> is putting in some serious hours at the gym.<\/p>\n The 43-year-old tennis champion posted a post-workout selfie to her Instagram account on Friday (July 11). In the selfie, she showed off her serious six-pack abs in an all-black gym outfit. <\/p>\n Keep reading to find out more\u2026<\/em><\/strong><\/span><\/p>\n Serena<\/strong> captioned the carousel of photos<\/a>, \u201cWorking out and working on my angles.\u201d <\/p>\n In the mirror selfies, Serena<\/strong> has her hair tied back and paired a black sports bra with a pair of matching black leggings for her gym session.<\/p>\n This set of selfies come after Serena<\/strong> has been sharing her fitness journey since giving birth to her second child in August 2023. The Olympic medalist began sharing her fitness journey they following year, all leading up to her showing off this photo of the her abs.<\/p>\n If you missed it, Serena<\/strong> recently revealed why she avoided speaking to another celebrity at an event<\/a>. <\/p>\n <\/span><\/p><\/div>\n<\/blockquote>\n