Riyad Mahrez's disallowed penalty in Leicester's 2-1 loss against Manchester City was a "freak" occurrence, said Foxes boss Craig Shakespeare.
Mahrez slipped as he took a second-half spot-kick that diverted the ball onto his standing foot before it looped into the net.
Referee Bobby Madley gave a free-kick to Man City because of the two touches.
"The shot was strange but the rule is clear. Two touches, the same as golf," said Man City manager Pep Guardiola.
"It is not normal."
Had the goal stood, it would have made the scoreline 2-2 after Leicester had trailed 2-0.