With Clayton Kershaw becoming the 20th pitcher to amass 3,000 career strikeouts, attention now turns to which active pitchers might someday join him.

Nolan Ryan has the most strikeouts in MLB history with 5,714 tallied across 27 seasons. He played for the New York Mets, Houston Astros, the then-California Angels and Texas Rangers. Here's the list of the pitchers above 3,000 strikeouts in chronological order (year achieved in parentheses):

Los Angeles Dodgers starting pitcher Clayton Kershaw has accomplished just about everything a baseball player could hope for in his 18-year career. He's a two-time World Series Champion, an MVP, a three-time Cy Young Award winner, a 10-time All-Star, and now, as his career enters its twilight, he added yet another accolade to the long list.