Tyrrell Hatton's frustrations boiled over with a foul-mouthed outburst as he squandered a promising start in round two of the 107th US PGA Championship.

Hatton was within a shot of the lead after covering his first eight holes at Quail Hollow in two under par, only to then run up a damaging triple bogey on the 18th.

After pulling his tee shot on the difficult par four into the creek which runs the length of the hole, Hatton could be clearly heard shouting "piece of s***" at the face of his driver, followed by another word which was not 100 per cent clear.Tyrrell Hatton's frustrations boiled over with a foul-mouthed outburst as he squandered a promising start in round two of the 107th US PGA Championship.

Hatton was within a shot of the lead after covering his first eight holes at Quail Hollow in two under par, only to then run up a damaging triple bogey on the 18th.

After pulling his tee shot on the difficult par four into the creek which runs the length of the hole, Hatton could be clearly heard shouting "piece of s***" at the face of his driver, followed by another word which was not 100 per cent clear.Hatton was within a shot of the lead after covering his first eight holes at Quail Hollow in two under par, only to then run up a damaging triple bogey on the 18th.

After pulling his tee shot on the difficult par four into the creek which runs the length of the hole, Hatton could be clearly heard shouting "piece of s***" at the face of his driver, followed by another word which was not 100 per cent clear.