The incident took place on Sunday in Brondby
Fans throwing foreign objects on to a pitch is not an unusual occurrence in sport.
Whether it's Luis Figo being greeted by a pig's head when taking a corner for Real Madrid against Barcelona, or a sex toy being thrown on the pitch in Buffalo during an NFL game last season, fans will find ways of smuggling unusual objects into a stadium.
Brondby and FC Copenhagen met on Sunday afternoon in a Danish Superliga clash. The rivals are Denmark's top two teams, with Copenhagen on course to win their second title in a row, having gone into the game with a nine point advantage.
With five minutes left in the game and Copenhagen leading 1-0 away from home, their defender Ludwig Augustinsson went to take a corner in front of Brondby's fans.
The Swedish defender, who has never played for Brondby, was greeted by the home fans, with a mischief of dead rats being thrown onto the pitch. A clearly shocked Augustinsson along with Benjamin Verbic, were forced to kick the dead animals off the pitch.
Augustinsson and his team mates had the last laugh though, winning the game 1-0. What does need to be asked is, why would fans bring dead rats to a game?
Why would they want to throw them at a player with no former allegiance to their club, and most importantly, why would Brondby's fans keep a rat in their pocket for hours, to disperse with it so late in the game?
Brondby fans threw dead rats on the pitch as the team took on city rivals Copenhagen in the Danish league. pic.twitter.com/i22jTFfXJZ— Bleacher Report UK (@br_uk) April 17, 2017