Summoned to protect a two-run lead, Jansen imploded before an irate Dodger Stadium crowd of 47,316 that booed him off the mound for a second straight night, the Dodgers losing three of four games to the Giants and falling three games behind them in the National League West. But Roberts, citing two plays on which the Dodgers thought they had sealed the victory, refused to pin Jansen's third blown save and loss in as many appearances on his closer.