Emmet Sheehan of the Los Angeles Dodgers pitched six innings of no-hit ball in his major league debut against the San Francisco Giants on Friday night, and reliever Brusdar Graterol gave up a leadoff single to Thairo Estrada in the seventh. Sheehan got his first strikeout in the second, when Mike Yastrzemski went down swinging on a 95.5 mph sinker. Sheehan allowed his first baserunner when Michael Conforto walked leading off the second.