Aston Villa have signed Douglas Luiz from Manchester City, in a deal thought to be around £15m, according to BBC.
The Brazil Under-23 captain has not made a single appearance for the English Premier League champions and was out on loan at Girona for the past two seasons.
The 21-year-old was signed from Vasco da Gama in August 2017, but could not join the team after he was denied a work permit.
Guardiola regards Luiz highly and was clearly disappointed when the Football Association failed to grant the Brazilian a work permit at the start of last season.
"I am so sad and disappointed for Douglas because he could help us, play with us," Guardiola said of the decision not to grant Luiz a work permit.
"He has shown many good things in training sessions and the reason why we spent a lot of money to buy him is because he is a player with a huge capacity to play for us,"
“One guy who doesn’t see the player or any training sessions every day has to judge if Douglas has the ability and quality to play. I accept the rules but I don’t understand because anybody in the world can work wherever he wants,"
Luiz is known for his versatility and has played as a right-back before.