️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ As a sprinter, Mariën specialized in the 200 metres and won gold in the
4×100 m relay at the 2008 Beijing Olympics. Mariën later became a bobsleigher, competing for Belgium at the 2014 Winter Olympics.<unk> Mariën later became a bobsleigher, competing for Belgium at the 2014 Winter Olympics.