 Complete the following phrase:  Pennington was given his junior international debut in 1998 at an ISU Junior Grand Prix event in Sofia, Bulgaria, where he placed 4th, and then placed 9th in his second assignment, in China. Since the 1999 World Junior Championships were scheduled to be held before U.S. Nationals, he competed at a since-discontinued competition to determine the US team. He placed third and was sent to 