The Belgian goalkeeper Thibaut Courtois  responded to questions from international media in the press conference after the team's final training session before their clash against Rennes on Thursday at 19:00 hours.   The goalkeeper, who played last year in Genk with the left sided player Chris Mavinga, said of his former teammate: 'He's a physically strong player The game will be difficult but I hope we win, 'he said.   The goalkeeper wanted to put the defeat in the last league match behind him and look ahead.'Saturday's game is past for me. There were five goals, but everyone knows that Barcelona is a very strong team. Tomorrow is another game,' he said.