Many have spoken out against the decision that allowed Kylian Mbappe to score the equaliser in the 98th minute of the PSG-Newcastle game. Szymon Marziniak, considered the best referee in the world and in charge of the final of the last World Cup, has been criticised from everywhere. But the truth is that the rule, at the very least, does not contradict his decision.
Newcastle defender Tino Livramento tried to block a pass from Dembele in the box. The ball hit him in the chest before bouncing into his arm, approximately at elbow level. Marciniak did not award the penalty live, but did when, after the VAR call, he reviewed the play on the monitor.
A few years ago, the IFAB did exclude such actions from being punishable by a penalty. Generally, it was not considered an infraction if the ball "comes directly from the player's own head or body".