Champions League title holders Porto face a struggle to qualify for the knockout phase after Paris St Germain held them to an uninspired 0-0 draw on Tuesday.

• 葡萄牙波尔图队在本赛季的冠军联赛中，表现差强人意，在周二的比赛中，波尔图队与巴黎圣日耳曼队在一场比赛中0：0互交白卷。