Complex sentence: Big results came fast, the underdog Šiauliai, became LKL 3rd place winners, in 1997 Kazlauskas became a head-coach of Lithuanian National Basketball Team, invited Sireika to join Lithuanian national squad as an assistant.
Split into simpler sentences: Big results came fast, the underdog Šiauliai, became 3rd place winners in the LKL. In 1997 Kazlauskas became head-coach of the Lithuanian National Basketball Team, and invited Sireika to join the Lithuanian national squad as an assistant.