Mike Trout
On April 17, 2015, Trout became the youngest player in MLB history to reach 100 home runs and 100 stolen bases. He was 23 years and 253 days old when he reached the milestone, passing the previous record-holder, Alex Rodriguez, who had achieved it at the age of 23 years and 309 days in 1999. Trout led off the 2015 MLB All-Star Game with a home run, becoming the fourth player in All-Star Game history to do so. For the second year in a row, Trout won the All-Star Game MVP Award, becoming the first player ever to win it in consecutive years. On September 22, Trout hit his 40th home run, becoming only the second Angels player to hit 40 home runs in a season. Trout led the AL in WAR for the fourth straight year.
Brian Barber
Barber made his major league debut on August 12, 1995 with the Cardinals at age 22, making him the youngest player on the team. On that day, Barber pitched four innings, giving up three earned runs. He had a record of 2–1 and 5.22 earned run average. The following year, he pitched in only 3 innings, with an ERA of 15.00. Following the 1996 season, Barber found himself unhappy with the Cardinals, and on December 21, 1996, he was granted free agency. Two weeks later, he was signed by the Kansas City Royals. Barber missed the entire 1997 season in the minors. In 1998, Barber reemerged, pitching in 42 innings. His ERA was, however, 6.00. He also recorded a record of 2–4. The following year, Barber pitched in only 18.2 innings, with an ERA of 9.64, and a record of 1–3. On October 4, 1999, Barber was granted free agency again. About two months later, he was picked up by the Cleveland Indians. However, Barber would not pitch in an Indians uniform, as he retired.