Dolgopolov, who is ranked 64th, said after Saturday’s 6-1, 6-0, 6-4 win against Viktor Troicki at Flushing Meadows that he has been interviewed by the Tennis Integrity Unit. With Verstappen taking a 20-place grid penalty for Sunday’s race, and Ricciardo dropping 25 af. Nadal was hanging by his teeth, facing two break points in the fourth game of the second set. ICELAND’S SETBACKFinland handed an upset 1-0 defeat to Iceland to win its first match in the 2018 World Cup qualifying campaign. ’Serbia relied on Mijat Gacinovic and Aleksandar Kolarov to beat Moldova 3-0 Saturday and take control of Group D in World Cup European qualifying. ’High performance director David John was named interim coach following the pink slip issued to Roelant Oltmans. Federer’s back looked just fine, his movement precise, his strokes absolutely on-point. The German was India’s first tryst with a foreign coach in a sport where eight Olympic gold medals were supposed to mean the country needed no outside help. Mexico clinched one of the three berths from North and Central America and the Caribbean on Friday night, and Costa Rica is close to securing another. Despite trailing leaders Croatia and Iceland by two points before the match on Saturday, Ukraine top.