Emilia’s Big Day: London Broncos partner with blood cancer charity to celebrate young rugby fan - London Broncos will host ‘Emilia’s Big Day’ to celebrate young cancer survivor whose life was saved by a stem cell donor. - Supporters can join the stem cell donor register with a simple mouth swab - This is part of a partnership with DKMS : inspired by lifelong rugby league fan whose baby son needed a stem cell transplant. Rugby league’s London Broncos have teamed up with blood cancer charity DKMS to organise ‘Emilia’s Big Day’, a family fun day and stem cell donor registration event, before their Championship game against Bradford Bulls on 6 September.