Andrey Rublev withstood an extended rain break to dismiss Italian Matteo Arnaldi 6-4, 6-2 and charge into the final of the Canadian Open in Montreal. Rain delayed play by almost two hours at 6-4, 1-1. Once the players returned to the court, Rublev won five of the final six games of the match. “The wait has been worth it. I’m happy to be in my first Canadian final,” Rublev said after the match. In the other semi-final, Alexei Popyrin ended Sebastian Korda’s eight-match winning streak to claim his spot in the final with a 7-6 (7-0), 6-3 win. “It means the world … it’s an amazing achievement fo…