In this modern era of tennis (often called the Golden Era), most players outside of the Big Four can be all but counted out before each Slam even starts. It would take a lot for a less dominant player to win a major, but that doesn’t mean there is no chance of it happening.
Sooner or later, somebody ranked No. 5 or lower will earn a Slam title. When that will be remains a mystery; it could be a matter of years before that happens, or it may be as soon as this season or the next.
Here’s a look at the most likely non-Big Four member to win each of the next five Slams.