Juventus boss Massimiliano Allegri hailed Angel Di Maria as "extraordinary" after the new arrival impressed in the Bianconeri's 2-2 friendly draw with Barcelona.

Allegri also warned the Blaugrana are "back" and ready to compete for silverware after rebuilding their side during a busy transfer window under Xavi.

A brace each for Ousmane Dembele and Moise Kean saw Barca and Juve share an entertaining draw in Dallas, with Di Maria impressing, particularly in the first half.

After the match, Allegri said the Argentine – who won five Ligue 1 titles during a seven-year spell with Paris Saint-Germain before heading to Turin on a free transfer earlier this month – was a top signing for Juve.

"Di Maria is an extraordinary player. He is a champion, and it is a pleasure to see him play," Allegri said. 

"For us, it was a great acquisition."

Juventus were subjected to a tough test against Barcelona, who handed starts to new signings Robert Lewandowski, Franck Kessie and Andreas Christensen, as Xavi's team recorded 20 attempts and enjoyed 58 per cent of the possession in Texas.

And Allegri was pleased with how his side coped against elite opposition as he warned Barcelona will be back in contention for major honours after their recent spending spree.

"Tonight we had a good match against an important team," Allegri added.

"Without a doubt we could have done better on the two goals we conceded, but we had many scoring chances, I'm happy with how it went. We are working very well and tonight was a good test. 

"Attention, Barcelona are back... they have built an important team to return to win. This draw is worth a lot."

Juventus wrap up their tour of the United States against Real Madrid in Los Angeles on Sunday, before travelling to Israel to face Atletico Madrid in their final outing of pre-season.