Harsh Mankad and his American partner Brian Battistone have entered the Doubles semi finals of the Poznan ATP Challenger tournament in Poland beating Martin Alund and Diego Junqueira. Mankad and Battistone overcame a second set lapse to beat the Argentine pair 6-3, 5-7, 10-4 in the quarter-finals. They will next take on Daniel Munoz-De La Nava of Spain and Portugal's Rui Machado, who stunned second seeds Tomasz Bednarek and Frank Moser 6-2, 7-6 in their quarterfinals.