Top Irish model Roz Purcell has revealed that her sister, Rachel, is battling with leukaemia.

Roz currently lives with her older sister in the city centre and admitted that she adopted her dog, Wilko, as it was suggested a pet might help with Rachel's illness.

According to the Irish Independent, the model's big sis was diagnosed earlier this year: “When my sister Rachel was diagnosed with chronic myeloid leukaemia earlier this year, one of the things she was advised to do was to keep her stress levels down, and it was suggested to us that we get a dog.

“Rachel and I live together in Dublin, so it made sense because we love dogs and had wanted one for a while,” she said.

 

Chilling #weekendvibes #itsfriday #instacool #puppy #wilko #love #dogsofinstagram #instadaily #dublin #sunshine

A photo posted by Rachel Purcell (@rachelpurcll) on May 13, 2016 at 5:07am PDT

Roz also admitted that Wilko has definitely helped Rachel to be more active throughout the day and at weekends.

"Having Wilko has helped Rachel so much because having a pet there really encourages you to go out every day walking.

“CML is a long term illness, but Rachel is very positive about it and has been reaching health milestones since her diagnosis in January," Roz added.