Haotong Li was penalised with a one-stroke penalty at the Irish Open due to a rule breach over ball movement.On day three, the Chinese star was playing on hole 10 when one of his shots landed in a ditch near the green.Li had his Irish Open score impacted by an unusual rule breachGettyThere was a steady stream of water flowing amid recent heavy rain in Doonbeg, whilst strong winds caused a delay on Friday.Li went to look at the position of the ball in the water, which looked to be relatively shallow.However, he appeared to knock it out of place with a ripple, one that was more than likely to be accidental.This meant he had to return the ball to its original spot and an extra stroke added onto his score as per the regulations.Rule 9.4b set by the golf governing body R&A refers to a ‘Penalty for Lifting or Deliberately Touching Ball or Causing It to Move’.“If the player lifts or deliberately touches their ball at rest or causes it to move, the player gets one penalty stroke,” it says.Shane Lowry, who was grouped with Li and Jacob Skov Olesen, made an attempt to help his competitor correctly reposition the ball.An Irish Open official was also seen assisting in the bizarre scenario.Li eventually finished the par-five hole with a bogey, with the stroke penalty impacting his score.He ended the day on two over as he hit another three bogeys, and is sitting in joint-sixth ahead of the final day.View Tweet: https://x.com/hashtag/AmgenIrishOpen?src=hash&ref_src=twsrc%5EtfwAside from the one-stroke penalty, Li had to battle in tough conditions on hole 10GettyWho leads the Irish Open?Home favourite Lowry finds himself at the summit on -16, having had a brilliant outing on day two.He is on course to win a second Irish Open title, with his first coming in 2009 when he was an amateur.Olesen is four behind him in second and Joaquin Niemann is ranked third on -9.Defending champion Rory McIlroy has been off the pace as he finds himself in joint-50th.Play on Sunday is due to begin at 7:15am UK time.