By AIMEE BERG

The most dangerous runner in the elite men’s field of the Fifth Avenue Mile on Sunday may well be the smallest. Leonel Manzano, 5 feet 5 inches and 122 pounds, spent the summer slaying giants on the European track circuit with his devastating finishing kick.

In his next-to-last outing, a 1,500-meter race in Brussels, Manzano not only made up time in the final lap, but he ran the last 100 meters in about 12 seconds.

“That’s typical Leo,” one of his coaches, Ryan Ponsonby, said.

Equally riveting is the way Manzano pops out of traffic in the home stretch.