Kei Nishikori eased to a comfortable straight sets win against Rohan Bopanna on Friday to help Japan to a 2-0 lead over India in their Davis Cup World Group playoff tie.

In the opening match on the Ariake Coliseum hard court, Japan's world number 175 Yuichi Sugita caused an upset with a 6-3, 6-4, 7-5 win over 65th-ranked Somdev Devvarman.