There's claims Conte has lost the dressing room after consecutive league defeats to Bournemouth and Watford.
But Courtois insists: "We believe in him [Antonio Conte] and we believe in our team. We have two bad results and we just try to get back and to go back in training, regroup and just continue. We showed that we wanted to fight even with 10 men and that shows we have character, but when you lose twice like that it is not good and there are questions raised, but we go back to training with the manager, and training well and turn this situation around.
"Obviously we are disappointed with the two results we have had in the last week, obviously it is not good but we have to regroup in training, have heads high and continue the hard work and just continue what we were doing. We have now two bad losses but we are a team with the manager, and everyone is positive about that, and we will try to do our best to win next week.
"We have to say thank you to the fans as well who for 96 minutes they were singing and supporting the team, when we were losing as well."