49ers' Isaac Guerendo arrives to make quick first impression in NFL

Isaac Guerendo stood still in his size-12, red sneakers as 49ers reporters interviewed him Thursday for the first time at his new home of Levi's Stadium. Six years ago, Guerendo crossed the finish line first in the 100-yard dash to win an Indiana state championship. “That was definitely a thought,” Guerendo said upon arriving for 49ers' rookie minicamp. Guerendo enters the NFL with less wear and tear on his 6-foot-, 221-pound body.