The Blues boss reiterated that neither player was used in negotiations to sign Wayne Rooney, insisting he has no intention to let either leave Stamford Bridge.Chelsea boss Jose Mourinho has insisted there is "no chance" the club will sell Juan Mata or David Luiz this summer.
The duo's future at Stamford Bridge was recently cast into doubt after both were rumored to have been offered as part of a deal for Manchester United striker Wayne Rooney, a claim that Chelsea vehemently denied.
Mourinho was quick to address the issue in his first press conference after arriving in Malaysia as part of the club's preseason tour, responding definitively to questions as to whether he would consider selling either player.
"No chance. No chance," Mourinho told reporters, before responding to whether the pair would still be at the club next season by insisting "Yes. For me that's enough."
Mourinho also took the opportunity to remind international players that they cannot afford to sit on the bench this season if they are hoping to secure a place in next summer's World Cup.
"I always say to my players that when they are with the national team they don't think about our club, but when they are with the club they have to forget the national team and give everything to the club," Mourinho said. "At the same time, normally players who want to go to their national team and play for their country, normally they must be first choice players for their clubs and be playing regularly. That's the big motivation if you are thinking about playing at the World Cup.
"If they want to go to the World Cup and they're second choice at their club, then they're in trouble, they're in trouble.
"I think it's a crucial year for them. Many national team coaches are worried, because they want players to play regularly for their clubs. They have to play for me to play for them. It's a combination. They must share the situation."