Sousa upsets Tursunov in St. Petersburg Open

The Associated Press
Sousa upsets Tursunov in St. Petersburg Open
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Joao Sousa of Portugal returns the ball to Dmitry Tursunov of Russia during the St. Petersburg Open ATP tennis tournament quarter final match in St.Petersburg, Russia, Friday, Sept. 20, 2013. (AP Photo/Dmitry Lovetsky)

ST. PETERSBURG, Russia (AP) -- Joao Sousa advanced to his first career ATP tour semifinal by beating fourth-seeded Dmitry Tursunov 6-4, 6-3 Friday at the St. Petersburg Open.

The 89th-ranked player from Portugal broke Tursunov in the eighth game of the second set and closed out the match with a forehand down the line on his second match point.

In Saturday's semifinals, Sousa will face Guillermo Garcia-Lopes of Spain, who upset eighth-seeded Denis Istomin of Uzbekistan 6-2, 6-4.

Earlier, sixth-seeded Ernests Gulbis of Latvia defeated Roberto Bautista Agut 6-1, 6-2. He will play Michal Przysiezny of Poland, who ousted seventh-seeded Lukas Rosol of the Czech Republic 7-6 (7), 1-6, 6-3.