Complex sentence: Sasaki debuted in Riki Chōshū's Japan Pro Wrestling Promotion (a satellite of All Japan Pro Wrestling) in February 1986, and would later follow Chōshū as he returned to New Japan Pro Wrestling in 1987.
Split into simpler sentences: Sasaki debuted in Riki Chōshū's Japan Pro Wrestling Promotion (a satellite of All Japan Pro Wrestling) in February 1986. Sasaki follow Chōshū as he returned to New Japan Pro Wrestling in 1987.