Pitcher Cristopher Sánchez has the longest scoreless streak in Philadelphia Phillies history — since at least 1893, when the current mound distance was set — and probably before that. He has the seventh-longest such streak in MLB since 1920. He has the second-longest one by a left-hander. (Facebook via John Clark) By MATT GELB / THE ATHLETIC They finally found a weakness in Cristopher Sánchez, a few minutes after the Philadelphia Phillies completed a sweep of the Padres in San Diego. The…