SAN FRANCISCO - Michael Cuddyer will be examined by doctors Thursday in New York because of lingering soreness in a balky left knee that has kept him out of the starting lineup six times in the Mets' last eight games.

"Obviously, it bothers me here or there," Cuddyer said after the Mets' 4-1 win over the Giants Wednesday. "But it's something we can play with."

Though Cuddyer was available, he did not play. Eric Campbell went 2-for-4 including, a two-run homer in the ninth hitting, just his third of the year.

"I've been staying positive and telling myself that I've been having some good at-bats," said Campbell, who upped his average to .176. "Eventually it will turn at some point you hope. But to finally see a couple of balls fall in it's definitely nice."

Cuddyer hopes to play in Friday night's series opener against the Diamondbacks. In his first season with the Mets, Cuddyer has struggled, hitting just .240 with six homers and 28 RBIs.

Until his knee issue, the 36-year-old had stayed relatively healthy, a departure from an injury-plagued season a year ago. But that durability also has been costly.

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"It just might be the wear and tear, which I think it is," said Cuddyer, who has played in 76 games, up from 49 last year. "I played double that this year already. Obviously, nothing is torn or anything like that. Obviously, it is just beat up. It's not a DL injury as far as I'm concerned."

Extra bases

Closer Jeurys Familia trails the other four candidates in the fan vote to select the final NL All-Star . . . Sandy Alderson said the trade market is "just beginning to reveal itself." . . . Hitting coach Kevin Long said Lucas Duda's struggles have been more mental than physical.