Victor Caceres scored an 89th-minute goal to secure Paraguay a 1-1 draw against World Cup-bound France in Nice.
France substitute Antoine Griezmann opened the scoring with nine minutes remaining when he netted after Olivier Giroud's effort was blocked.
But Caceres glanced in following a Jorge Rojas free-kick to earn a draw.
After the match, France coach Didier Deschamps calmed concerns about Franck Ribery's back problem - and hopes the forward will face Jamaica on Sunday.
He said: "I have nothing new to add. We'll do everything so he's ready for next Sunday."
France face Honduras in their World Cup Group E opener on 15 June, with matches against Switzerland and Ecuador to follow.