Sabalenka takes dig at Kostyuk after winning Brisbane International title, kisses biceps

World number one women's tennis player Aryna Sabalenka took an apparent dig at Marta Kostyuk after defeating her 6-4, 6-3 in the Brisbane International final. Sabalenka kissed her biceps. Notably, last October, Kostyuk had suggested that some players possess higher testosterone levels, noting Sabalenka was “much bigger, much taller, much stronger."