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.
List of oldest and youngest National Basketball Association players
The oldest person ever to play in the NBA was Nat Hickey, a coach who activated himself as a player for a game two days before his 46th birthday. The youngest player ever to play in the NBA was Andrew Bynum, who played his first game only six days after his 18th birthday. The oldest active player is Atlanta Hawks guard/forward Vince Carter, who is currently 42 years old. The youngest active player in the NBA is Los Angeles Lakers guard/forward Isaac Bonga, the 39th pick in the 2018 NBA draft, who is currently 19 years old.