Yulieski Gourriel is set to audition for the Mets.

The highly regarded Cuban third baseman will soon work out privately for team officials, according to general manager Sandy Alderson — who is keeping all options open at the position with David Wright likely finished for the season following surgery for a herniated disk in his neck.

“We’re going to do our due diligence on that player,” Alderson said Tuesday, referring to Gourriel. “We have made arrangements to do that. At the same time, that player hasn’t seen live pitching for weeks, if not months.

“It’s not clear how long a player in that situation would take to be ready, and of course there is the investment and all the other issues and making an evaluation based on workouts primarily — and not game competition. But we’re going to go through that process.”

But Alderson also wouldn’t dismiss the possibility of signing the 32-year old Gourriel based on the fact he could need through the All-Star break to be ready.

“If we felt there was a solution where we had to sacrifice a few weeks in return for substantially longer, that trade-off might be worthwhile,” Alderson said.

The Mets signed first-round draft pick Justin Dunn, a right-handed pitcher from Freeport, NY, who just completed his junior year at Boston College. The 20-year-old Dunn, who reportedly received a signing bonus of $2.3788 million, will be assigned to Single-A Brooklyn.

Third baseman Blake Tiberi, the team’s third-round draft pick, also signed. Tiberi, a redshirt sophomore who played at Louisville, will also be assigned to Brooklyn.

Travis d’Arnaud was activated from the disabled list and immediately placed in the starting lineup against the Royals. Kevin Plawecki was optioned to Triple-A Las Vegas to make room for d’Arnaud, who had been on the disabled list since April 26 with a strained right rotator cuff.

“I’m here to cheer everyone up, put smiles on people’s faces and do whatever I can to help the team win,” d’Arnaud said.

Plawecki was hitting only .194 with a homer and 10 RBIs in 124 at-bats this season. Terry Collins said the team might have erred in putting Plawecki on the Opening Day roster instead of letting him get regular at-bats to start the season at Las Vegas.

Bartolo Colon and Noah Syndergaard flip-flopped in the rotation, allowing Syndergaard an extra day of rest following his 115-pitch performance against the Pirates last week.

Syndergaard will start Wednesday afternoon against the Royals and also be in position to start Monday’s series opener in Washington.

Jim Henderson was placed on the disabled list with tendinitis in his right shoulder and Sean Gilmartin was recalled from Las Vegas. The lefty Gilmartin may not be available from the bullpen until Thursday, according to Collins, because he threw 100 pitches in his start on Sunday for Las Vegas.