The two European giants are dealing with unexpected problems in the transfer market as they prepare for the 2017-18 campaign
Juventus will take on Barcelona in the International Champions Cup on Saturday in a repeat of the 2015 Champions League final.
Barca have new boss Ernesto Valverde guiding them through their preparations for the 2017-18 season, while Juve have been rocked by the departure of star defender Leonardo Bonucci to Serie A rivals Milan.
Both clubs have plenty of work to do, then, to make it back to European football's biggest game in the coming campaign and will hope to learn a few lessons at the MetLife Stadium in New Jersey.