Mezue ahịrịokwu na-esonụ: David Realista Grachat (amụrụ 21 Jenụwarị 1987) bụ onye Portuguese para-swimmer, na-asọmpi na S9 nhazi ọkwa ihe omume. O sonyere n'egwuregwu Paralympic Summer atọ, 2008 na Beijing,
2012 na London na 2016 na Rio. Grachat enwetala ihe nrite na European na World larịị, na specializes na 400m freestyle.