 Complete the following phrase:  Leinsters first season in the newly formed Celtic League ended in success as the Lions were crowned the inaugural champions, beating rivals Munster Rugby in the 200102 final. In 200203, they became only the third team in the history of the European Cup to win all their games in pool play. They also went one step further in the playoffs than the previous season by reaching the semi-finals for the first time since 199596, but lost at home against French side Perpig, which was accompanied by an 