Ben Shelton prevails in all-American final to retain Canadian Open title

• American wins second straight Masters 1000 title

• Shelton improves to 6-0 against fellow American

• Norrie advances as Draper falls in Cincinnati

Ben Shelton broke onto the scene by winning his first-ever ATP Masters 1000 championship a year ago in Toronto.

He earned his second crown at that level by successfully defending his Canadian title on Thursday, defeating fellow American Brandon Nakashima 6-3, 7-6 (4) to win the National Bank Open in Montreal.