Roger Federer knocked out of US Open

In the US Open Tennis Tournament, Five-time Champion Roger Federer was knocked out after losing to Grigor Dimitrov in the quarterfinals on Tuesday. The 78th-ranked Bulgarian, who had dropped all seven prior meetings with Federer, made a dramatic fightback to defeat the Swiss third seed 3-6, 6-4, 3-6, 6-4, 6-2 at Arthur Ashe Stadium. He will face Russian fifth seed Medvedev in Friday's semis. Roger Federer struggled to hide his disappointment after his bid for a first US Open title since...