UEFA investigators looking into match-fixing by an Albanian club have received anonymous death threats.
Albania's FA has stripped Skenderbeu of the club championship won in the 2015-16 season for "influencing results contrary to the sports ethics."
The president of Albanian club Skenderbeu is "baffled" by the news that UEFA may impose a further ban after already enduring a season-long exclusion.
The development comes after the Court of Arbitration for Sport confirmed Skenderbeu's expulsion from the qualifying rounds for match-fixing.
Albanian league champion KF Skenderbeu says it has been banned from UEFA competitions for a year for match-fixing.
Lokomotiv apology says: "The atmosphere at the stadium was darkened by a group of people who chanted political slogans and incitements to violence."
Valencia advanced to the Champions League group stage on Monday by holding off Monaco, while Celtic crashed out after losing at Malmo on Tuesday.
Ludogorets Razgrad's Champions League dreams came to an early end on Tuesday as they bounced out of the competition in the second qualifying round.
Two of last season's Champions League group-stage underdogs got off to a rough start in the first leg of the second qualifying round on Tuesday.
Celtic eased through to the Champions League third qualifying round with an emphatic 4-0 win over KR Reykjavik at the BT Murrayfield stadium in Edinburgh.
Ronny Deila's tenure as Celtic boss began with a narrow but deserved 1-0 win in the first leg of their Champions League second round qualifier against KR Reykjavik, thanks to a late goal from debutant Callum McGregor.