Juventus manager Massimiliano Allegri was disappointed after Tuesday’s draw with Sporting CP saw them miss their chance to qualify for the next round of the Champions League.
The Italian champions needed a late equaliser from Gonzalo Higuain to earn a 1-1 draw in Lisbon that keeps the Portuguese side just three points below them in Group D.
"It's a shame, we've not managed to put it beyond doubt," Allegri said. "It's still all to play for, with another two tough games to go."
Barcelona lead the group with 10 points, three more than Juve’s seven, with two matches left to play; against Barca in Turin before heading to Greece to face Olympiakos.
It was a poor first half," Allegri said of the stalemate, in which Bruno Cesar opened the scoring 20 minutes in. "Even after the goal there was no reaction from us – we didn't spring back into life.
"It was better after the interval. The changes around the 70th minute provided more dynamism, as you'd expect, but even once we'd equalised we weren't very slick in our play.
"We had time to try and turn the game in our favour, but we didn't do so. There clearly needs to be an element of fear to bring the best out of us."