I just noticed that there three red cards given in the first leg of the knockout playoffs
Among the three, Galastaray is unlikely to stage a come back in the second leg. Maybe they can win by a small margin but it's tough to qualify for the next round. At least Roma and Paok can still do it.
Galatasaray was losing to AZ Alkmaar before red card should be given to Ayhan in 51 minutes of the game, the red card weaken their performance to conceded two more goals and lost the match. Galatasaray might try their best to win the the second leg but not sure that the team will qualify to the stage of the tournament.
However, Roma and Poak which their player was also given a red card during their first leg of the Europa league match, both teams have the opportunity to win the second leg. Roma played draw in the first leg, even though they win the second leg by one goal, they will qualify to the next round. Poak lost the first leg, FCSB got the red card advantage to win, they have to score 2 or more goals in the second leg to secure their chance among the teams to play in the next stage.