Young, 35, hurt the quad running out a single for Double-A Harrisburg on July 19. He then went to Washington to have an MRI, which revealed the tear. Young, who is currently rehabbing the quad in Fort Lauderdale, Fla., was hitting .241 with two RBIs for Harrisburg.
"I was hustling to first base, and then I heard a pop," Young said. "I was hoping that it was a bruise, but I knew it was serious. Earlier in the game, I was able to run from first to home."
Young is currently in the last year of a two-year, $10 million contract and has yet to play a Major League game this season.
Young played three seasons for the organization. His best season with Washington was in 2007. In 136 games, Young hit .320 with 13 home runs and 74 RBIs. He ended up winning Comeback Player of the Year honors that year.
Last season, Young was limited to 50 games because of a lower back sprain and complications with diabetes, which he currently has under control.
Young sounded like a man who realized that he will not be back with the Nationals next season. However, he expressed gratitude toward the team.
Young thought his career was over after the 2006 season. He was released by the Tigers and was put on probation for domestic violence. Early in '07, the Nationals were the only team interested in Young, who signed a Minor League contract with Washington in February of that year.
"I would like to thank the Nationals for putting me back on my feet," Young said.
Young also said that he is not retiring from the game of baseball. He plans to be 100 percent by the winter and sign with a contending team or a team on which he can be a positive influence with young players.
Bill Ladson is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.