 Complete the following phrase:  Martin ONeill took charge of the club in June 2000. Under his leadership, Celtic won three SPL championships out of five losing the others by very small margins and in his first season in charge the club also won the domestic treble, making ONeill only the second Celtic manager to do so after Jock Stein. In 2003, around 80,000 Celtic fans travelled to watch the club compete in the 