Although Noah Syndergaard is in the mix to start for the National League in Tuesday’s All-Star Game in San Diego, he doesn’t appear to be a safe bet to earn the honor.

At least that’s the impression left by the ultimate decision-maker, Mets manager Terry Collins, who will also lead the NL all-stars.

Syndergaard (9-3, 2.41) is pitching with a small bone spur in his elbow, a factor that Collins said “weighs enormously” in his decision to name a starter by Monday. Of course, the Mets righthander is also facing some stiff competition.

The Cubs’ Jake Arrieta (12-3, 2.33) and the Giants’ Madison Bumgarner (9-4, 2.09) have positioned themselves to make the start over Syndergaard, a first-time all-star.

“They’re some other guys that are pretty good, too,” Collins said. “It’s a nice group to select from.”

30 for 30

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Mets closer Jeurys Familia didn’t blink in the ninth inning of Wednesday’s 4-2 victory over the Marlins. His 30th save in 30 chances this season began when he struck out Giancarlo Stanton, no small task.

Indeed, Stanton was chasing his fifth homer in his last five at-bats.

“In my mind, I’m always thinking I’m just going to do my job,” said Familia, the first-time all-star who leads the majors in saves.

Dating to Aug. 1, Familia has notched 46 consecutive regular season saves, the longest active streak in baseball.

Familia became just the 15th pitcher to record 30 saves before the break, joining the ranks of Mariano Rivera and Joe Nathan.

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Extra bases

Shortstop Asdrubal Cabrera was scratched just before first pitch. Collins said Cabrera was feeling ill. The team announced earlier that Cabrera had stayed up the night before to tend to a family illness. Jose Reyes started at short . . . Setup man Addison Reed tossed a scoreless eighth inning, lowering his ERA to 1.95 in his last 33 1⁄3 innings.