Soccer Football - FC Porto v Juventus - UEFA Champions League Round of 16 First Leg - Dragao Stadium, Porto, Portugal - 22/2/17 Juventus' Gianluigi Buffon with FC Porto's Iker Casillas after the match Reuters / Miguel Vidal Livepic
MILAN (Reuters) - Porto must follow in Barcelona's footsteps and achieve a Champions League first on Tuesday if they are to overcome Juventus and reach the quarter-finals.
The Portuguese league leaders will have to claw their way back from a 2-0 home defeat in the first leg, something which has never been done in the knockout stage since Europe's top club competition was reformed in 1992.
