Kerr was booked for her intervention.

“We have seen in the growth of the game that there is this sense the players are more in demand,” said Hayes.

“So I think it should serve as a reminder to us all and the stadiums and stewards that we have to put player protection first.”

The incident happened during the closing stages of the Group A encounter, which ended goalless, as a man entered the field and held up play.

Holding a mobile phone, he was pushed out of the way and told to leave the pitch by Chelsea captain Magdalena Eriksson.

His appearance was met with a chorus of boos from fans which turned to cheers when Australia captain Kerr barged him over, for which she received a booking from referee Sara Persson.

The incident capped a frustrating night for Chelsea, who need at least a draw in their final group game at Wolfsburg to guarantee progress to the quarter-finals after failing to break down the Italian champions.