Indeed, they did extremely well to file a complaint demanding a walkover for a tie they lost 6-1. That's definition of a great performance, eh? You want them to do well? How about they actually try and do it on the pitch?
Bereszynski was sent off against Apollon last year, he was suspended for 3 games and Legia thought that suspension would still be running even if they didn't register him for St Patricks tie so they didn't. He didn't play against Celtic at home because that was supposed to be his 3rd game of suspension, they gave him less than 3 minutes yesterday. Now Celtic think Legia should have registered him for the St Patricks tie (and are right to be fair) and want a walkover (which is fecking ridiculous).
They will get a €15k fine and a slap on the wrist. Bereszyński did not influence the game in any way until mental Scots think they were scoring 6 in the final 3 minutes without him on the pitch. Clutching at straws at its best, they couldn't do half the job on the pitch.