"What is happening in many places on the earth is filling me with sadness and it is hard for me to understand and accept it." Bartra added in his message on his Twitter account.
He mentioned that "life goes on, we have to try to be positive, to be better people and to live each moment as it it were the last."
"At least I am doing it with more power, when I remember the things i have lived through and all the good things I have to live for." said the Dortmund player.
As a consequence to the bomb attack on the team bus, he suffered a fracture to his radius.
He recovered and he made his comeback on the last game of the Bundesliga and he may win the final of the German Cup on Saturday against Eintracht Frankfurt.