 Complete the following phrase:  Boon made his debut in the national team in 2008. In 2009 he finished fifth with this team at the European Championship in Amstelveen and in 2011 they finished fourth at the European Championship in Mönchengladbach. In 2011, he also won the Champions Challenge. With his club Racing Brussels, he became Belgian field hockey champion for five consecutive years 2009-2013. At the 2012 Summer Olympics, he competed for the national team in the mens tournament that came fifth. Boon became European silver medalist with Belgium at the 