Let's make this birthday one to remember.

40 years old (Born on March 22, 1985)

Happy Birthday, Justin Masterson! From your early days pitching heat with the Boston Red Sox to becoming a true ace with the Cleveland Indians, you've always known how to keep batters guessing—and fans cheering. Your sinker has baffled hitters and delighted crowds, making every game you pitch a must-watch event.

Here's hoping your birthday is as memorable as that 2013 All-Star season when you dominated on the mound and earned your spot among baseball's best. May this year bring you plenty of laughs, fewer curveballs off the field, and more strikeouts on it. Keep throwing strikes—and birthday parties!