MLB is Skewing Toward Stars in Their Early to Mid-20s

While the age of baseball fans is rising, the opposite is happening on the field: MLB is skewing toward stars in their early to mid-20s. These players make up a growing share of their teams’ overall production (as measured by WAR) and are peaking earlier—a trend attributed to the professionalization of baseball at ever-younger ages.

—The Wall Street Jour…