Paris: Celtic were eyeing a potential Champions League reprieve Thursday when Legia Warsaw, who knocked them out in the third qualifying round, faced an investigation over the eligibility of one of their players.
The Polish side breezed into the play-offs, winning 6-1 on aggregate, but the European governing body is looking into the participation of international defender Bartosz Bereszynski in Wednesday`s second leg.
"The club announces that in connection with the Celtic-Legia Warsaw match in the second leg of the third qualifying round of the Champions League, UEFA has opened an investigation into the participation of Bartosz Bereszynski," said a statement released by the Polish champions.
"The club is preparing the relevant information and explanations, which will be sent to UEFA today.
"The result of the investigation will be announced immediately after its completion."
Bereszynski, who only played four minutes of Wednesday`s second leg tie at Murrayfield, was sent off in Legia`s concluding Europa League match last season.
He was suspended for the club`s two matches against Ireland`s St Patrick`s in the second qualifying round and also missed the 4-1 first-leg victory over Celtic last week.
But the UEFA investigation is understood to centre around whether or not the player was registered in time for Legia`s squad against the Irish side in order to allow a three-match suspension to take effect.