The Giants now have lost the first two games of a three-game series against the Brewers, and they’ve lost them at home. They have 13 games left and they need to perform because they are crowded at the top of the National League West with the San Diego Padres and Colorado Rockies. They need to avoid a sweep on Sunday. The problem is that Barry Zito is pitching. And Barry Zito has a glass jaw. To read my column about Zito’s jaw click here.