Football: FRISK BACK TO HAUNT BLUES; The FA CUP Countdown to the fifth round.
CHELSEA are demanding UEFA assurances that there will be no fall-out from the Anders Frisk affair when the ref is picked for next week's Champions League first leg clash with Barcelona.
The Premiership champs are on red alert after UEFA hinted last season's highly-charged clashes between the two teams would be taken into account when the official is announced on Monday.
UEFA are supposed to keep the appointment a secret until 48 hours before Champions League ties, but a spokesman said: "The choice of the referee will be influenced by the incidents of last season."
Swedish whistler Frisk (above) quit football after he claim ed to have received death threats after criticism from Jose Mourinho.
The Blues boss alleged Frisk had a half-time conversation wit h Barca cach Fr ank Rijkaard in the Nou Camp first leg which may have influenced Didier Drogba's red card.
Mourinho was branded an "enemy of football" by UEFA refs chief Volker Roth, fined and given a two-match ban.
Chelsea are now on high alert and a Blues spokesman said last night: "We are certainly concerned that a UEFA official should be making a comment like that less than a week before the game and we hope that it is not correct.
"We are working on the assumption that the appointment of referees for both games will be made without reference to things from the past."
In Spain Swede Peter Frojdfeldt is being tipped as the likely ref for the first leg.