Before the Dodgers traded for Mookie Betts, their analytics staff and pro personnel department conducted a study to gauge the aging curve of such small outfielders with power. Betts is listed at 5-foot-9 and 180 pounds. His career slugging percentage is .519. They found nobody like him, not unless you count Mel Ott, who debuted 94 years ago and needed to hit baseballs just 259 feet to clear the Polo Grounds wall in the right field corner.
Upon trading for Betts from Boston, and watching him first in spring training and lately in summer camp, the Dodgers came to a similar conclusion about Betts that the statistical study yielded: there is nobody like Markus Lynn Betts, the outlier with the MLB initials and now the 12-year, $365 million extension.