SAN FRANCISCO -- Was Tim Lincecum affected by Tuesday's foul weather? No, he insisted.Was he injured? Absolutely not.What about the rush to start the game once it was realized that the showers were ending? Did that interfere with his preparation? Uh-uh.Lincecum simply endured a bad day, the kind that all athletes inevitably experience. He allowed three runs and four hits while walking three in three innings, matching the shortest outing of his career, in the Giants' 10-6 Opening Day win over the Milwaukee Brewers."I don't think there's an excuse or a reason why I did the way I did," Lincecum said. "It's just part of the game and part of the day."As the National League's reigning Cy Young Award winner, Lincecum seemed impervious to such lapses. He seemed destined to recover after the first inning, when he struck out Prince Fielder and J.J. Hardy to strand Brewers on second and third. But opposing pitcher Jeff Suppan and Rickie Weeks lashed RBI doubles in the second inning before Milwaukee added another run in