Serena Williams happy to copy Roger Federer tactic in US Open final vs Naomi Osaka

SERENA WILLIAMS says she has been working on using Roger Federer’s famous SABR tactic - and could continue to unleash it in the US Open final.

from Daily Express :: Tennis Feed https://www.express.co.uk/sport/tennis/1014309/Serena-Williams-Roger-Federer-SABR-US-Open-final-Naomi-Osaka
via Express