New Zealand doubles player Artem Sitak has battled his way into the semi finals at the ATP tennis tournament in Estoril.
A day after knocking out the third seeds, Sitak and his Dutch partner Wesley Koolhof beaten the Portuguese wildcard pairing of Gastao Elias and Pedro Sousa 7-6 (2) 4-6 10-8 in the quarter finals.
It was a tight match in blustery conditions from the outset with neither combination managing a break in the first set although Sitak and Koolhof created three chances against their opponents serve. The set went to a tie breaker which Sitak and Koolhof clinched comfortably.
Although Sitak and Koolhof continued to create opportunities against their opponents in the second set they managed to convert just one of five breaks while Elias and Sousa broke twice to level the match up and force a super tie breaker.
It went down to the wire with Sitak and Koolhof clinching the win on their first match point in 1 hr 29.