Jon Steven Young (born October 11, 1961) is a former professional American football quarterback who played 15 seasons in the National Football League (NFL) and is best known for his 13 seasons with the San Francisco 49ers. He also played for the NFL Tampa Bay Buccaneers and the Los Angeles Express of the United States Football League (USFL). Young played college football for Brigham Young University, setting school and NCAA records en route to being runner-up for the 1983 Heisman Trophy. Young was named the AP's NFL Most Valuable Player in 1992 and 1994, and was the MVP of Super Bowl XXIX.
Montana's backup: 1987-1990
Young played behind Montana his first several years, but shone as a backup. Substituting for an injured Montana, early in the first quarter of a 1987 game against the Chicago Bears, he threw four touchdown passes in a 41-0 victory. In their 1987 divisional playoff game against the Minnesota Vikings, he replaced Montana in the second half after the team fell behind 27-10. The 49ers still lost the game, but Young had a fairly good performance with 12/17 completions for 158 yards and a touchdown, with one interception, while also leading San Francisco in rushing with 72 yards and a touchdown on six carries. On October 30, 1988, Young ran for a 49-yard, game-winning touchdown against the Minnesota Vikings. He started the game out with a 73-yard touchdown pass to John Taylor, after Montana went down with an injury. The play earned the 49ers a 24-21 victory and a bit of revenge on the Vikings for their previous season's playoff loss.  In 1989, he displayed his potential to become the team's starter in the future. While Montana won the NFL MVP award and led the team to victory in Super Bowl XXIV, Young still had a good season, completing 69% of his passes for 1,001 yards and eight touchdowns, with only three interceptions. On October 22, 1989, he posted a perfect passer rating of 158.3 when he completed 11 of 12 passes for 188 yards and three touchdown passes in a 37-20 victory over the New England Patriots. In his four seasons as a backup, Young had thrown 23 touchdown passes and only six interceptions.  He rushed for a career-high 102 yards on just eight carries vs. the New Orleans Saints on December 23, 1990, making him only the second 49ers quarterback to rush for at least 100 yards in a single game. The 49ers lost the game 13-10.

Q: Did Steve Young play any notable games while a backup?
A: Substituting for an injured Montana, early in the first quarter of a 1987 game against the Chicago Bears, he threw four touchdown passes in a 41-0

Q: Did they win that game?
A: 41-0 victory.

Q: Did he play any other notable games?
A: he replaced Montana in the second half after the team fell behind 27-10. The 49ers still lost the game, but Young had a fairly good performance

Q: Who were the 49ers playing in this game?
A: Minnesota Vikings,

Q: When was this game being played?
A: 1987

Q: Was this game played at the 49ers' stadium or the Vikings' stadium?
A: unknown

Q: Did the 49ers play well during the 1987 to 1990 period?
A: The play earned the 49ers a 24-21 victory and a bit of revenge on the Vikings for their previous season's playoff loss.
Did they ever get to the Super Bowl while Steve Young was there?
While Montana won the NFL MVP award and led the team to victory in Super Bowl XXIV, Young still had a good season,
While Montana won the NFL MVP award and led the team to victory in Super Bowl XXIV, Young still had a good season,