Problem: Background: Jason Gilbert Giambi (; born January 8, 1971) is an American former professional baseball first baseman and designated hitter. In his Major League Baseball (MLB) career, which began in 1995, he played for the Oakland Athletics, New York Yankees, Colorado Rockies and Cleveland Indians. Giambi was the American League MVP in 2000 while with the Athletics, and is a five-time All-Star who led the American League in walks four times, in on-base percentage three times, and in doubles and in slugging percentage once each, and won the Silver Slugger Award twice. Giambi has publicly apologized for using performance-enhancing drugs during his career.
Context: Late in 2003, Giambi was named by FBI officers investigating the Bay Area Laboratory Co-operative (BALCO) as being one of the baseball players believed to have received anabolic steroids from trainer Greg Anderson.  In December 2004, the San Francisco Chronicle reported it had seen Giambi's 2003 grand jury testimony in the BALCO investigation. The newspaper said that in his testimony, Giambi admitted to using several different steroids during the off-seasons from 2001 to 2003, and injecting himself with human growth hormone during the 2003 season. In a press conference prior to the 2005 season, Giambi apologized publicly to the media and his fans, though he did not specifically state what for. The lawyer who illegally leaked the testimony later pleaded guilty, and was sentenced to 2 and a half years in prison.  Giambi apologized again on May 16, 2007, this time specifically for using steroids, and urged others in the sport to do the same. "I was wrong for using that stuff", he told USA Today. "What we should have done a long time ago was stand up--players, ownership, everybody--and said, 'We made a mistake.'" When asked why he used steroids, Giambi responded: "Maybe one day I'll talk about it, but not now." Giambi did speak with George J. Mitchell, after being forced to do so by Bud Selig. Subsequently, in December 2007, the Mitchell Report included Giambi along with his brother Jeremy Giambi, who also admitted to using steroids during his career.  The prosecution in the Barry Bonds perjury case indicated they intended to call both Jason and Jeremy Giambi to testify against Bonds in his March 2009 trial.
Question: Did he use steroids?
Answer: Giambi admitted to using several different steroids during the off-seasons from 2001 to 2003,

Problem: Background: Daniel Lee Dierdorf (born June 29, 1949) is a former American football offensive lineman and current sportscaster. A native of Canton, Ohio, Dierdorf played college football for the University of Michigan from 1968 to 1970 and was selected as a consensus first-team All-American in 1970 and a first-team All-Big Ten Conference player in 1969 and 1970. He was inducted into the University of Michigan Athletic Hall of Honor in 1996 and the College Football Hall of Fame in 2000. Dierdorf played professional football in National Football League (NFL) with the St. Louis Cardinals for 13 seasons from 1971 to 1983.
Context: On September 9, 1979, Dierforf sustained torn ligaments in his left knee during an extra point attempt in the second quarter of the second game of the season against the New York Giants. After the game, Dierdorf said, "The knee was completely out of the socket. It moved a couple of inches off to the side. My leg was all twisted around and my foot was pointing in the wrong direction. It was painful. Very painful." Dierdorf was carried off the field on a stretcher, underwent knee surgery, and missed the remainder of the 1979 season.  Dierdorf returned to the Cardinals in 1980, starting all 16 games for the team at right tackle in both the 1980 and 1981 seasons. In 1980, he was selected to play in the Pro Bowl and was selected as a first-team All-NFL player by the NEA. In 1982, Dierdorf moved to center and was the starter at that position for all nine games in a strike-shortened season.  In 1983, Dierdorf returned to his right tackle position and appeared in seven games, only four as a starter. On October 11, 1983, after the Cardinals began the season with a 1-5 record, Dierdorf announced that he would retire at the end of the 1983 season. At the press conference announcing his retirement, Dierdorf said, "This was an easy decision for me to make. . . . Physically, I just can't play the type of game I want to." He added: "Ninety-five percent of me is sad that I'm retiring, but my knees are very, very happy."
Question: How did he do as right tackle?
Answer:
appeared in seven games, only four as a starter.