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.
Yo-Yo Davalillo
Davalillo played eleven seasons in minor league baseball, nine of them at Triple-A level, and posted a .270 average in 1,207 games. He also played in Mexico (1962–64) and spent fourteen seasons with the Leones del Caracas of the Venezuelan Winter League (1952–53 and 1965–66). He is the second-smallest player in major league baseball history. The shortest player on record is 43-inch Eddie Gaedel, who got one plate appearance (a walk) as a 1951 publicity stunt. Five players listed at 5-3 have graced the major leagues since 1900, according to Baseball Reference, with Pompeyo Davalillo, Jess Cortazzo, Bob Emmerich, Stubby Magner and Mike McCormack combining for 90 hits in 463 at-bats".