Sonny Gray

This is one exclusive club. Simply put, there just aren't that many big leaguers who earn the title of MLB superstar.

Players like Clayton Kershaw and Miguel Cabrera easily fit the bill, and each season, a host of rising stars aim to join the ranks. "Superstar" is a tricky term to define. For the purposes of this list, the idea is to find five big leaguers on the verge of joining that stratosphere.

Per Jane Lee of MLB.com, Oakland Athletics starting pitcher Sonny Gray has become the first A's player since at least 1914 to open a season with 10 consecutive quality starts. Gray ran his streak to 10 games with an eight-inning performance Thursday afternoon, allowing only a single earned run to the Tampa Bay Rays while striking out three.