Thairo Estrada homered and drove in four runs, Alex Wood continued San Francisco's superb starting pitching and the Giants completed a three-game sweep with an 8-1 win Sunday over the Cleveland Guardians in football-like weather. Estrada hit a two-run homer off Aaron Civale (0-1) in the second inning and Brandon Belt added a two-run shot in the seventh as the Giants won their fifth straight. Wood (1-0) allowed just four hits without a run over five innings before turning it over to San Francisco's bullpen.