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8/10/2014 1:54 P.M. ET

Giants undeterred by struggles vs. winning teams

KANSAS CITY -- Saturday night's 5-0 loss to the Royals ensured the prolonging of a troubling trend for the Giants.

Kansas City's series-clinching victory meant San Francisco has to wait until next week when it visits the Nationals (63-52) for another shot at its first series win against a team over .500 in more than two months.

The fact that, entering Sunday, his team has gone 5-21 and lost all eight series against teams currently over .500 since taking two of three June 5 from the Reds didn't seem to concern catcher Buster Posey.

"Hopefully we get hot here down the stretch and that will be irrelevant," Posey said.

On June 9, the Giants laid claim to the best record in baseball at 42-21. However, they had dropped 34 of their last 54 games and lost 13 games in the National League West standings since they reigned supreme.

"You have to look at silver linings for these tough times," said Giants manager Bruce Bochy, alluding specifically to "the fact that we're still in this."

San Francisco remained seven games over .500, just 3 1/2 games behind the NL West-leading Dodgers, and is tied with the Cardinals for the second NL Wild Card.

"We are still right there, but we've got to play better," Saturday night's starter Tim Hudson said.

When discussing his team's recent struggles, Posey mentioned the 2013 Giants, who, on Aug. 10, were 12 games under .500 and 14 games out of first place in the NL West.

"For me, personally, the feeling this year compared to last year is night and day," Posey said. "It still feels like we're in a position to make a run and we know [from] the past that if we can get in the playoffs, you never know what can happen."

Giants recall Duvall from Triple-A Fresno

KANSAS CITY -- The Giants recalled first baseman Adam Duvall from Triple-A Fresno before Sunday's series finale with the Royals.

This is Duvall's third stint with the team in 2014. His debut came June 26, and he's hit .200 with a pair of home runs in 40 plate appearances this season, entering play Sunday.

Duvall provides a reinforcement at first, after starter Brandon Belt went on the seven-day concussion disabled list Friday. Duvall was penciled into the fifth spot in the lineup and started at first for the Giants on Sunday.

"We've got some left-handed pitching coming up here, and [Duvall can] help out at first with [Travis] Ishikawa," Giants manager Bruce Bochy said.

In a corresponding roster move, San Francisco optioned outfielder Juan Perez to Fresno.

Perez compiled a .175/.246/.286 slash line in 71 plate appearances.

Worth noting

Michael Morse was a late scratch Sunday with an infected ingrown toenail. Gregor Blanco filled in at left field for Morse.

Jackson Alexander is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.