PETERBOROUGH'S Niels-Kristian Iversen has been ruled out of tonight's (Monday) Sports Insure Premiership clash with Sheffield.
Iversen is struggling with a neck and shoulder problem which he picked up in Denmark last week, and he is not fit to race tonight.
The Crendon Panthers will operate rider replacement against the Tigers, and Iversen hopes to return in time for Thursday's home match against Leicester.