"Phenomenal on the court, nice and friendly off it" - Madison Keys and others praise Iga Swiatek following America's Billie Jean Cup Finals tie against Poland
"We were playing against one of the biggest legends of the game in his home country, it was electric" - Jack Sock pays tribute to Andy Murray after Great Britain vs USA Davis Cup tie
"One of the best days of my career to get one win against him; to do it with USA on my chest was even more special" - James Blake on defeating Roger Federer