BOSTON — David Ortiz helped his adopted city recover from the Boston Marathon bombings. And now the Red Sox are calling on their fans to reciprocate for their beloved Big Papi.

“We all remember in 2013 when we needed David Ortiz the most, he was there for us,” team president Sam Kennedy said Monday, a day after the longtime slugger was wounded in a nightclub shooting in his native Dominican Republic. “So it’s appropriate and expected that his community would rally behind David when he needs us most.”

The 43-year-old Ortiz was shot once in the torso on Sunday night in what appeared to be a targeted attack at a Santo Domingo nightclub. Dominican police there did not immediately identify or arrest the gunman; the motive was under investigation.

“I didn’t sleep very well last night,” said Red Sox special assistant Jason Varitek, who was Ortiz’s teammate for nearly a decade. “I don’t think anybody did.”

Anthony Cornwall, of Simi Valley, Calif., a fan of former Boston Red Sox slugger David Ortiz, examines a jersey featuring Ortiz’ name and number at a baseball memorabilia shop near Fenway Park, in Boston, Monday, June 10, 2019. Ortiz was ambushed by a man who got off a motorcycle and shot him in the back at close range Sunday night in his native Dominican Republic, authorities said. (AP Photo/Steven Senne)

The shooting occurred during Game 6 of the Stanley Cup Final and stole the city’s attention from the Bruins victory as fans and former teammates stayed up into the morning searching for information on Ortiz’s condition. Longtime rivals turned to social media to offer their best wishes; former Dominican president Leonel Fernández visited him in the hospital.

“It shocked us to the core,” Kennedy said. “It was jarring, stunning and, frankly, terrifying. It was a horrific incident. Our focus right now is exclusively to focus on his health and well-being (and) to get David back here in Boston.”

The Red Sox sent an air ambulance to the Dominican Republic to transport Ortiz to Boston, where he will continue his treatment at Massachusetts General Hospital. Kennedy said he hoped Ortiz would be arriving in the city sometime on Monday night.

“I just hope when he gets here that everything is fine, and we can see the big man here again with us and filling our room with joy,” manager Alex Cora said. “He’s bigger than life.”

A 10-time All-Star and the Most Valuable Player of the 2013 World Series, Ortiz was one of the most productive — and popular — players in Red Sox history. He led the once-cursed franchise to three championships, and retired in 2016 with a career total of 541 home runs that is 17th-most in baseball history.

“Somebody just asked me what my favorite memory was. And it’s not all the home runs and game winning-hits that he’s had, and the World Series,” Red Sox pitcher Rick Porcello said. “It’s how he embraces everyone in a room. Just that imposing, loving figure that makes everyone feel special. That’s something that you don’t see a lot. That’s what separates him, for me.”

Ortiz further endeared himself to the local fans when he went to the Fenway Park mound after the attacks at the marathon finish line and proclaimed, “This is our (expletive) city!”

“Everyone knows what he was able to do on the field,” said longtime New York Yankees shortstop Derek Jeter, who is now a Miami Marlins owner. “What he has meant to the community — not only in Boston, but in the Dominican — this is a guy who is beloved throughout the sport and throughout sports in general.”

Yankees manager Aaron Boone echoed that.

“A giant in our sport. Charismatic. Great guy. Great competitor,” Boone said. “Still a giant in our sport, even in retirement.”

In this Oct. 10, 2016, file photo, Boston Red Sox designated hitter David Ortiz encourages the crowd from the dugout during the eighth inning in Game 3 of baseball’s American League Division Series against the Cleveland Indians in Boston. Former Boston Red Sox slugger Ortiz was shot and wounded in his native Dominican Republic, his father told ESPN on Sunday, June 9, 2019. (AP Photo/Elise Amendola, File)

The Red Sox retired Ortiz’s No. 34 in 2017, less than a year after he retired, and a street outside the ballpark was renamed in his honor. He remains connected with the ballclub in a special role that includes mentoring current players, recruiting free agents and making special appearances.

“He’s Boston, more or less,” said Glen Cantone, who attended Monday night’s game against the Rangers wearing an Ortiz jersey with a 2016 All-Star Game patch. “That’s why everybody loves him.”

And he was perhaps even more beloved back home.

“He’s obviously an icon on the Mount Rushmore in the city of Boston athletes, but he is the guy in the Dominican Republic,” Red Sox assistant general manager Eddie Romero said. “He’s more famous than any president. When people think of the Dominican Republic, they think David Ortiz, they think of Pedro Martinez.”