The Cardinals are grieving the loss of an active player for the third time in 12 years after the 22-year-old Taveras died Sunday in a car crash in the Dominican Republic. Matheny, general manager John Mozeliak and pitcher Carlos Martinez were part of a group from the organization with plans to attend a private burial service Tuesday in Taveras' country.
"I was asked last night to give some words regarding the tragic death of Oscar Taveras, but I just simply couldn't," Matheny said Monday in a statement. "To say this is a horrible loss of a life ended too soon would be an understatement."
Taveras was a teenager when he signed with St. Louis as an international free agent in 2008. He was regarded as one of baseball's top prospects and homered in his major league debut May 31. He also had a big solo drive in the seventh inning of Game 2 in the NL Championship Series against San Francisco.
"He was someone that became an identity of our organization to some degree," Mozeliak said in a conference call with St. Louis media before a visitation Monday night. "When you think about how much has been written about him and how much has been talked about him, he never truly got a chance to show it at the major league level."
Mozeliak said he took a connecting flight from Miami with Taveras' father.
"Clearly, he was shaken by these events," the GM said.
Taveras was driving a 2014 Chevrolet Camaro at the time of the accident on a highway between the beaches of Sosua and Cabarete in Puerto Plata, about 215 miles north of the capital of Santo Domingo. Edilia Arvelo, Taveras' 18-year-old girlfriend, also died in the crash.
A funeral for Arvelo was held Monday in her hometown of Moca.
Highway police spokesman Col. Diego Pesqueira said the road was wet from a recent rain but the cause of the crash is under investigation. An autopsy was done Monday but results weren't available.
Moises Rodriguez, the international scouting director for the Cardinals, called Mozeliak with the news Sunday night.
"My very first thought was 'Is this true? Is this possible?'" Mozeliak said.
Taveras held a Canadian passport. He spent four years as a teenager living in Montreal with his father, Francisco Taveras, and played for the Marquis de Montreal of the Quebec midget triple-A league before moving back to the Dominican Republic.
Taveras lived in Montreal between the ages of 12 and 16. He was considered a budding star outfielder during that time, said Alex Agostino, a former Baseball Quebec official who now scouts New England and eastern Canada for the Philadelphia Phillies.
"He had the tools to be a pro ballplayer," Agostino told The Canadian Press. "He could throw and field but his bat is what excited everybody.
"He was 15 and he played midget triple-A, which is 18 and under. He played (for Quebec) in the Canadian championships at age 15 and that doesn't happen a lot. And he was an all-star."
After playing for the Marquis de Montreal, Tavaras returned to the Dominican Republic so he could sign with a major league organization as a free agent. Had he completed high school in Canada, he would have had to go through the draft.
"It was a good decision," said Agostino. "He made it to the major leagues at 22.
"He was happy go lucky. Baseball was his life."
The Cardinals had just finalized plans for Taveras to spend most of November at the team's spring training facility in Jupiter, Florida, and then head to the Dominican Winter League. Taveras lost the regular right-fielder job to fellow rookie Randal Grichuk, but that did not diminish the organization's long-term view that Taveras could be a star.
Taveras hit .239 with three homers and 22 RBIs in 80 games in his only season in the majors.
"In my opinion, the word 'love' is the most misused, and misunderstood word in the English language. It is not popular for men to use this word, and even less popular for athletes," Matheny said. "But, there is not a more accurate word for how a group of men share a deep and genuine concern for each other. We loved Oscar, and he loved us. That is what a team does, that is what a family does. You will be missed, Oscar."
Matheny was a catcher for the Cardinals when pitcher Darryl Kile died of a heart problem in June 2002. St. Louis also lost Josh Hancock in a fatal car crash in April 2007.
Each of those deaths occurred during the season, but the accident for Taveras happened with his teammates at home after losing to San Francisco in the NL Championship Series.
Many of them took to Twitter to express their condolences.
"Last 30 minutes I've been sick to my stomach. Keep thinking about Oscar's big smile in the dugout whenever we made a big play/got a big hit," All-Star reliever Pat Neshek posted Sunday night.
Dionisio Soldevila contributed to this report from Santo Domingo, Domincan Republic.