David's brother, Kurt, defeats Po in Kickboxer (1989). A year after Po kills Kurt, David, who has a kickboxing gym in LA, is manipulated into a match against Po.David's brother, Kurt, defeats Po in Kickboxer (1989). A year after Po kills Kurt, David, who has a kickboxing gym in LA, is manipulated into a match against Po.David's brother, Kurt, defeats Po in Kickboxer (1989). A year after Po kills Kurt, David, who has a kickboxing gym in LA, is manipulated into a match against Po.