SAN FRANCISCO (AP) _ The Giants and the Mariners were apparently saving the fireworks for opening day.

San Francisco beat Seattle 2-0 on Friday night before a quiet crowd at Pacific Bell Park.

``We played well defensively,'' Giants manager Dusty Baker said. ``Both sides played well.''

Livan Hernandez, who will start for the Giants on Monday against the San Diego Padres, got his last tuneup of the spring. He went two innings, allowing one hit and striking out two.

Marvin Benard put the Giants up 1-0 in the third inning with an RBI double. Juan Melo added an RBI single in the eighth.

Mark Gardner earned the win, allowing one hit in two innings. Robb Nen, who had 41 saves last season, pitched the ninth and retired the side.

Aaron Sele, Seattle's 17-game winner last year, took the loss. He went six innings, allowing a run on a hit with four strikeouts and three walks.

The closest the Mariners came to scoring was in the first, when Mike Cameron doubled with one out. Edgar Martinez and John Olerud grounded out to end the threat.

The mood was subdued at Pac Bell before a near-capacity crowd.

One of the biggest cheers of the night came when Giants first baseman J.T. Snow hit a foul fly over the wall in right field and it splashed into the San Francisco Bay.

There should be more drama over the weekend when the Giants play host to the cross-bay rival Oakland Athletics in the traditional Bay Bridge Series.

``There's always excitement when it comes to us and Oakland,'' Baker said. ``We're both favored to win our divisions. I always follow them and I'm sure they follow us.''

The Mariners head home to Seattle for a two-game series against the St. Louis Cardinals before their opener Monday at home against the A's.

Notes: Giants third baseman Russ Davis, suspended for three games because of a fight with Chicago Cubs pitcher Julian Tavarez during an exhibition game, appealed the action and will be in the opening day lineup. Tavarez also appealed his five-game suspension. ... The Giants placed pitcher John Johnstone on the 15-day disabled list, retroactive to March 24, with lumbar facet syndrome, or a sore lower back. ... The Mariners released infielder Carlos Baerga on Friday. Baerga, who hasn't played in the major leagues since 1999, was signed by the Mariners in January to a minor league contract and invited to spring training.