Complex sentence: In May 2008, Sato transitioned into the world of professional wrestling, when he was signed by the Dramatic Dream Team (DDT) promotion, he is the current co-holder of the KO-D Tag Team Championship.
Split into simpler sentences: In May 2008, Sato transitioned into the world of professional wrestling, when he was signed by the Dramatic Dream Team (DDT) promotion. He is the current co-holder of the KO-D Tag Team Championship.