Tony Vitello shoulders blame for Giants' walk-off loss to D-backs: 'It's on me'

NBCS Bay Area - The Giants escaped jam after jam on Tuesday night at Chase Field, but the Arizona Diamondbacks finally got the best of them to deliver San Francisco a heartbreaking 5-3 loss in walk-off fashion.Left-hander Matt Gage was the Giants’ fifth pitcher of the game when he entered to face Ketel Marte...