As we saw by Rory McIlroy's emotional reaction to winning the Masters and completing the career Grand Slam, the guy was under an insane amount of pressure to finally get the job done. McIlroy admitted he felt "pure relief" after winning the playoff against Justin Rose to make (more) golf history.

The Masters is still fresh in the minds of golf fans. And now the PGA Championship is next to the plate with possibilities just as compelling.

Spieth has yet to win a PGA Championship since his tour debut at the 2010 AT&T Byron Nelson Championship. McIlroy skipped the Byron Nelson Classic this past weekend to rest after his grueling win in the Masters, which marked his third win of the season along with the AT&T Pebble Beach Pro-Am and the Players Championship.