Thrilling final day in store at PGA Championship as Mito Pereira leads chasing pack of young guns

(CNN) Grab your popcorn and your drinks, the PGA Championship is heating up.

Fans could be set for a thrilling final day on Sunday after an intriguing third round left things finely poised.

World No. 100 Mito Pereira leads the chasing pack by three shots after posting a one-under 69, leading the major with a score of nine-under after 54 holes.

Pereira, a rookie who has yet to win on the PGA Tour, raced into a commanding four-shot lead after five holes, but a run of four bogeys over five holes dragged him back to the pack.