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Jason Day plummets out of PGA Champs

Jason Day plummets out of PGA Champs
Jason Day has imploded during the US PGA Championship with a six-over-par 77 at Quail Hollow.

Jason Day has imploded during the third round of the US PGA Championship to give away a solid chance at a second career major.

After starting day three of the year's final major just two shots off the pace, the Australian world No.7 crashed out of contention spectacularly with a six-over-par 77 at Quail Hollow in North Carolina.

The 2015 US PGA Championship winner Day plummeted to a share of 16th at even-par, seven shots back of leader Kevin Kisner.

The American Kisner also battled to a rollercoaster 72 but at seven-under the card the South Carolina native clung to a one-shot lead over world No.3 Hideki Matsuyama (73) and Chris Stroud (71).

Justin Thomas (69) and 2010 British Open winner Louis Oosthuizen (71) share fourth a shot back at five-under.

AAP