ATP roundup: David Goffin stuns No. 1 Carlos Alcaraz

Belgium's David Goffin stunned World No. 1 and top seed Carlos Alcaraz of Spain 7-5, 6-3 on Tuesday in the opening round of the Astana Open in Kazakhkstan.

Entered into the draw as a lucky loser, Goffin converted five of his 11 break chances in the one-hour, 46-minute upset. It was the 19-year-old Alcaraz's first loss in straight sets since last November in Paris.

No. 2 Daniil Medvedev of Russia rolled to a 6-3, 6-1 def