Former World No. 1 Billie Jean King took to Twitter to commemorate fellow tennis icon, the late Althea Gibson on her 95th birthday on Thursday. King wrote a heartfelt message and posted it along with an old photo of Gibson with the Venus Rosewater Dish at Wimbledon."She changed my life at 13 by showing me what World No. 1 looked like. She broke the color barrier in tennis as the first Black person to win a major. She succeeded despite so much adversity. Today Althea Gibson would have turned 95. Let’s remember her always",Tweeted King.Billie Jean King@BillieJeanKingShe changed my life at 13 by showing me what World No. 1 looked like. She broke the color barrier in tennis as the first Black person to win a major.She succeeded despite so much adversity. Today Althea Gibson would have turned 95.Let’s remember her always. :Alamy1312154She changed my life at 13 by showing me what World No. 1 looked like. She broke the color barrier in tennis as the first Black person to win a major.She succeeded despite so much adversity. Today Althea Gibson would have turned 95.Let’s remember her always. 📷:Alamy https://t.co/ReMjZxBI3yGibson played in the era prior to King's and became the first black tennis player ever to win a Grand Slam tournament - at the 1956 French Open. The late icon was praised for overcoming the color barrier which played a role in the long road to reaching racial equality in society.Billie Jean King runs into basketball legend Steve Nash at WNBA playoffsBillie Jean King at the Championships - WimbledonAmerican tennis icon Billie Jean King ran into former NBA player and current head coach of the Brooklyn Nets, Steve Nash, at a WNBA playoffs match between the Chicago Sky and the New York Liberty on Tuesday night."A treat to spend some time last night with @SteveNash, one of the all-time greats, and head coach of the @BrooklynNets. #WNBAPlayoffs", Tweeted King.The two athletes were pictured having a conversation courtside as both seemed to be in good spirits. Nash's team, the Brooklyn Nets, finished seventh in the Eastern Conference of the NBA last season. The 12-time Grand Slam singles winner has been seen attending various women's sports matches and tournaments such as Wimbledon and the WNBA playoffs as of late.Billie Jean King is a known advocate for women's sports as she herself became the first sportswoman to earn $100 000 in a single year. This achievement paved the way for other female athletes towards equal pay amongst genders in sport.The 78-year-old has won a total of 39 Grand Slams consisting of 12 singles titles, 16 women's doubles titles, and 11 mixed doubles titles.Billie Jean King@BillieJeanKingA treat to spend some time last night with @SteveNash, one of the all-time greats, and head coach of the @BrooklynNets. #WNBAPlayoffs3466A treat to spend some time last night with @SteveNash, one of the all-time greats, and head coach of the @BrooklynNets. #WNBAPlayoffs https://t.co/cr9aVnldTU