Who won the Miami Open (tennis) 2019 for Men's singles?

Switzerland's Roger Federer defeats USA's John Isner in straight sets to lift his 101st career title at the Miami Open 2019. Federer is now behind only America's Jimmy Connors with 109 career singles titles. Roger Federer has lifted his fourth title at the Miami Open. It is Swiss player's 28th Masters' title and the 101st overall for a player who has won 20 Grand Slam singles titles. Winners of Miami Open 2019: Men's singles: Switzerland Roger Federer Women's singles: Australia Ashleigh Barty Men's doubles: United States Bob Bryan, United States Mike Bryan Women's doubles: Belgium Elise Mertens, Belarus Aryna Sabalen.