Both experienced UEFA Champions League campaigners, Roma and Porto know one of them will miss out on the group stage as their play-off tie draws to a close in the Italian capital.Previous meetings• The first leg on 17 August finished 1-1. Porto's André Silva equalised from the spot, team-mate Felipe having inadvertently deflected a well-worked corner past Iker Casillas midway through the first half. Roma played almost an hour with ten men following the dismissal of Thomas Vermaelen (41) on his debut for the Serie A side.• Prior to the first leg, the clubs' only past UEFA competition encounters were in the 1981/82 European Cup Winners' Cup second ro... UEFA.com - News