SAN DIEGO — Manny Machado hit a two-run home run — his first in more than three weeks — and left-hander Joey Lucchesi pitched five decent innings for the San Diego Padres, who beat the Boston Red Sox 3-1 Sunday to avoid a three-game sweep. Machado, the $300 million slugger, drove a pitch from left-hander Brian Johnson for his 27th homer to give the Padres a 3-0 lead.