 Wellens played for St Helens at in their 2000 Super League Grand Final victory over Wigan, and in their 2001 World Club Challenge victory against the Brisbane Broncos.Wellens played for St Helens at fullback in their 2002 Super League Grand Final victory against Bradford Bulls but was forced to leave the field after just two minutes with a broken cheekbone, which ruled him out of Great Britain's intentional series against New Zealand the following month.With a point to prove, Wellens became one of Super League's most notable performers and made the number 1 jersey his own at international level.