The Chelsea boss confirms there is "no chance" the Brazil international will be leaving Stamford Bridge and suggests the Liga champion looks elsewhere for defensive help.
The club has reportedly turned its attention to Luiz after missing out on Marquinhos and being thwarted in its attempts to sign PSG's Thiago Silva. Mourinho, though, has insisted all summer that Luiz will not be allowed to leave Stamford Bridge, and the Chelsea boss has reaffirmed that position with a week to go before the new campaign.
"If [Barcelona] need a central defender, my advice is that they have to go to the second name they have in the list, because they are wasting their time," Mourinho said to the club's official website regarding Luiz. "No chance."
Luiz and Juan Mata, who has also been linked with a move away from Chelsea this summer, both sat out the club's 3-1 defeat to Real Madrid in the Guinness International Champions Cup final in Miami on Wednesday through injury, and Mourinho feels their absences were noticeable.
"They are important players," Mourinho said. "The team with David Luiz and Mata is a better team. But we don't risk players in preseason.
"Mata had a little thing, no risk, David has something from the past, an injury he had before the Champions League final, so we stop, we are not here to risk. But the team with them is a better team."