Fleet-footed Isner grabs biggest win of his career

KEY BISCAYNE, Florida - John Isner punctuated his unexpected run to the Miami Open title with a surprising display of agility, dancing across the court while basking in a breakthrough.

The 6-foot-10 Isner looked twice as tall in winning the biggest title of his 14-year career, holding every service game and rallying past Alexander Zverev 6-7 (4), 6-4, 6-4 on Sunday.

Isner, who turns 33 this month, was 0-3 in his previous ATP Masters 1000 finals.