It comes back to the same discussions we had in this thread about the PL for the past couple of months. Nothing will be 100% fair other than playing in home stadiums and with fans but that isn't possible so you have two choices, end the competition or use the least unfair option. Playing the 2nd legs of the round of 16 in Portugal isn't fair but it's fairer and better for everybody than not playing the games at all.Seems bloody unfair for teams to have played away, then can’t play at home