"It's not just a death, it's a hero's death. A lot of athletes do wonderful things – but they don't die doing it," says former teammate Steve Blass about Roberto Clemente on ESPN Classic's SportsCentury series.

Playing in an era dominated by the likes of Willie Mays, Mickey Mantle and Hank Aaron, Roberto Clemente was usually overlooked by fans when they discussed great players. Not until late in his 18-year career did the public appreciate the many talents of the 12-time All-Star of the Pittsburgh Pirates.

	Clemente's legacy lives on -- look no farther than the number on Sammy Sosa's back.

Of all Clemente's skills, his best tool was his right arm. From rightfield, he unleashed lasers. He set a record by leading the National League in assists five seasons. He probably would have led even more times, but players learned it wasn't wise to run on Clemente. Combined with his arm, his ability to track down fly balls earned him Gold Gloves the last 12 years of his career.

At bat, Clemente seemed uncomfortable, rolling his neck and stretching his back. But it was the pitchers who felt the pain. Standing deep in the box, the right-handed hitter would drive the ball to all fields. After batting above .300 just once in his first five seasons, Clemente came into his own as a hitter. Starting in 1960, he batted above .311 in 12 of his final 13 seasons, and won four batting titles in a seven-year period.

He was the 11th player to achieve 3,000 hits. He hit safely in all 14 World Series games he played, helping the Pirates win both seven-game Series.

"He had about him a touch of royalty," then-Commissioner Bowie Kuhn said.

Clemente was born on Aug. 18, 1934, in Carolina, Puerto Rico, the youngest of seven children. Growing up he would help his father, who worked as a foreman on a sugar plantation and manager of a grocery store, load and unload trucks.

Clemente took advantage of the weather in Puerto Rico to play baseball year-round. He became consumed with playing the game. He squeezed a rubber ball to build up his throwing arm. While in high school, he signed a $60-a-month contract -- he also received a $5,000 bonus and a new glove -- to play for Santurce, a professional team in the Puerto Rican league. Clemente, then 18, hit .356 in the winter of 1952-53.

	With exactly 3,000 hits, Roberto Clemente is the measure of greatness in baseball.

The next season Brooklyn Dodgers scout Al Campanis held a clinic and Clemente impressed Campanis enough that he offered him a $10,000 bonus. The teenager had to wait until he graduated high school before he could sign with a major league team, but he gave his word to Campanis that he would sign with the Dodgers. Other teams later were ready to offer Clemente more money, with the Milwaukee Braves willing to give him a $30,000 bonus. But being a man of his word, Clemente stuck to his agreement and signed with Brooklyn.

The talent-laden Dodger organization of the mid-1950s knew it would be difficult for the teenager to break into the Brooklyn lineup so it tried to hide him in the minors. Management was concerned that another team would draft him after the 1954 season. (There was a rule stating that any player who received a bonus of at least $4,000 had to be placed on the major league roster within a year or he could be drafted for $4,000.) Although Clemente batted only 148 times for the Montreal Royals, the Dodgers' top farm team, and hit just .257 with two homers and 12 RBI, the worries proved justified. The Pirates drafted him that November.

Although only 20 and still learning the English language, Clemente became a starter for Pittsburgh in 1955. He wasn't an instant hit, batting .255 with five homers in 124 games. The next year, he hit .311. Two years later, he recorded 22 assists, tops among outfielders.

The Pirates, who were awful in Clemente's first three seasons, had built a strong club by 1960. They won the National League pennant that season, with Clemente hitting .314 with 16 homers and a team-high 94 RBI and making his first All-Star team. He continued his stellar play in the World Series, hitting .310, as the Pirates defeated the New York Yankees on Bill Mazeroski's ninth-inning homer in Game 7.

	If Clemente didn't beat you with his bat, he was able to do it with his glove.

But Clemente never wore his 1960 championship ring. Feeling snubbed by the writers because he only finished eighth in MVP balloting (teammate Dick Groat won the award), he wore an All-Star ring instead.

Clemente's performance in 1960 acted as a springboard for a terrific 1961. Physically, the 5-foot-11, 175-pound Clemente was in the best shape of his life, finally getting over the chronic back problems that had bothered him since his rookie season. With his improved health, Clemente hit .351 to win his first batting title, rapping out 201 hits.

From 1964 to 1967, Clemente won three more batting titles. And in the year he didn't win one, he was voted the National League's MVP. His averages were .339 (in 1964), .329 (1965) and a career-best .357 (1967). When he won the MVP (over Sandy Koufax, who went 27-9 with a 1.73 ERA and trailed by 10 points in the voting), he finished fifth in batting at .317, but had career-highs with 29 homers and 119 RBI (second best in the league). The Pirates came in third, three games behind the first-place Dodgers.

In 1971, Clemente (.341) and Willie Stargell (48 homers and 125 RBI) led the Pirates to another pennant. Although one of the game's finest players, Clemente hadn't received much national media attention. That changed in the World Series. Clemente was a one-man wrecking crew against the Baltimore Orioles, chasing down fly balls, unleashing marvelous throws at every opportunity and blistering Baltimore pitchers to a .414 tune. His home run in Game 7 provided the Pirates with the game's first run in their 2-1 victory. He was voted the Series MVP.

"There was ... Clemente playing a kind of baseball that none of us had ever seen before -- throwing and running and hitting at something close to the level of absolute perfection, playing to win but also playing the game almost as if it were a form of punishment for everyone else on the field," wrote Roger Angell in The Summer Game.

Before Game 7, Clemente had told Angell, "I want everybody in the world to know that this is the way I play all the time. All season, every season. I gave everything I had to this game."

In 1972, at 38, he batted .312, although injuries limited him to a career-low 378 at-bats. On September 30, Clemente doubled off New York Mets lefthander Jon Matlack. It was his 3,000th hit. Nobody knew it at the time, but it would be his last hit in the regular season (he had four in the Pirates' loss to the Cincinnati Reds in the playoffs).

During the winter of 1972 Clemente began work on a sports city for the young people of San Juan. On December 23, the city of Managua, Nicaragua, was rocked by an earthquake that killed thousands, and left many more homeless. Clemente organized a relief effort for the quake victims and on New Year's Eve, he and four others boarded a small DC-7 loaded with supplies for the victims. Shortly after takeoff, the plane exploded and crashed in the Atlantic Ocean. There were no survivors.

Clemente's death shocked the world as well as the people of Puerto Rico, where a three-day mourning period was declared. The Baseball Writers Association of America held a special election and the mandatory five-year waiting period for the Hall of Fame was waived. On Aug. 6, 1973, Clemente, who had a lifetime .317 average with 240 homers and 1,305 RBI, was posthumously inducted into Cooperstown. He was the first Hispanic elected to the shrine.

In memory of Clemente, the player and humanitarian, the Pirates in 1973 wore uniform patches with his No. 21 on them.