At Sibur Arena
St. Petersburg, Russia
Surface: Hardcourt indoor
ST. PETERSBURG, RUSSIA (AP) _ Results Sunday from St. Petersburg Open at Sibur Arena (seedings in parentheses):
Andrey Rublev (3), Russia, def. Borna Coric (7), Croatia, 7-6 (5), 6-4.
Jurgen Melzer, Austria, and Edouard Roger-Vasselin (2), France, def. Matwe Middelkoop, Netherlands, and Marcelo Demoliner, Brazil, 6-2, 7-6 (4).