How to replenish the major-league bullpen quickly? The Mets gave it the ol’ college try Tuesday in the second day of the amateur draft.

The Mets selected six college pitchers among their eight picks in rounds three through 10. Now, it’s likely that none of the arms will advance quickly enough to help the big-league team down the stretch. But it doesn’t cost anything to dream.

“Some of the righthanded pitchers we believe have a chance to start,” said Tommy Tanous, the Mets’ vice president of international and amateur scouting. “We’ll certainly give all of those pitchers that opportunity, the opportunity to start. Some are relievers that can move a little quicker through the system.”

Tanous said picking all the college pitchers wasn’t based on any “particular philosophy.”

“We have had a little more success later in the draft getting guys to the big leagues, helping the big-league club,” he said. “We stayed with that philosophy. It was just kind of how this draft fell this year. We were happy with the amount of pitchers we were able to take in the later rounds.”

The day actually began with the Mets taking Stanford outfielder Quinn Brodey with their third-round pick (97th overall). Six of the next seven, and the last five in a row, were righthanded pitchers.

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In round four (127th overall), the Mets took Kennesaw State’s Tony Dibrell, who struck out 103 in 95 2⁄3 innings in college.

Then it was back to the Stanford outfield for the Mets’ fifth-round pick (157th overall) when they took Brodey’s teammate Matt Winaker.

The Mets went back to the mound for rounds six through 10, selecting New Mexico State’s Marcel Renteria (187th overall), Cal State Northridge’s Conner O’Neil (217th), Oklahoma State’s Trey Cobb (247th), Arkansas’ Cannon Chadwick (277th) and Kansas’ Stephen Villines (307th).

The last four picks all pitched in the bullpen in college.

On the first day of the draft on Monday, the Mets selected Oregon lefthander David Peterson with the 20th overall pick and high school infielder Mark Vientos with their second-round pick (59th).

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Vientos is a shortstop from Plantation, Florida, but he may project as a third baseman.

“I’m just blessed to have the opportunity,” Vientos said, “especially to get picked by the New York Mets, my dad’s favorite team, my favorite team, my family’s favorite team. I just can’t wait to play.”

The draft concludes Wednesday with rounds 11 through 40.