By Larry Fine SAN FRANCISCO - Pablo Sandoval had been sick to his stomach but the third baseman rose to the occasion on Saturday with a clutch bases-loaded single that helped the San Francisco Giants level the World Series at 2-2. Sandoval, the World Series MVP in San Francisco's 2012 triumph, stroked a two-out, bases-loaded single to center to snap a 4-4 tie in the sixth and send the Giants on their way to an 11-4 thumping of the Kansas City Royals. "I didn't feel great yesterday," said Sandoval, who struggled through an 0-for-4 in a 3-2 loss on Friday. "It was a tough moment. ...