CLEVELAND (AP) — Rookie Jake Moody missed a 41-yard field goal with six seconds left as San Francisco was stunned 19-17 by the Cleveland Browns, who ended the 49ers’ regular-season winning streak at 15 and handed quarterback Brock Purdy his first loss as an NFL starter. Dustin Hopkins kicked four field goals — the last with 1:40 left — for the Browns, who pulled off the upset without quarterback Deshaun Watson. He missed his second straight game with a bruised right shoulder. P.J. Walker came off Cleveland’s practice squad and outplayed Purdy, who had won his first 10 starts. The 23-year-old drove the 49ers into field-goal range, but Moody was wide right on his attempt.