Juventus coach Antonio Conte admits there's a lot of hard work ahead after losing to Sporting Lisbon in Toronto.
The Bianconeri lost the opening game of their North American tour 2-1 in Toronto, with Alessandro Del Piero netting a late consolation goal.
"We couldn't bring the intensity we wanted, but let's not forget yesterday in 42 degrees we had a heavy fitness training session," said Conte.
"We've got to grow and some players need to rediscover their self-esteem, because after two difficult years it's inevitable that we must rebuild confidence.
"I liked the effort put in by everyone and the passionate reaction of the second half, because nobody was prepared to lose. Mind you, if we didn't want to risk defeat, then we'd stick to playing amateur teams at this stage of the season.
"We should welcome these international games, even against a side like Sporting Lisbon who are already in shape for the Champions League preliminary round. We've got to keep pushing ourselves, because there's a lot of work to do."
