Roberts reflected on her sister being a perfect match donor for her during her own cancer treatment.

Robin Robertsdelivered moving news through tears on Thursday’s episode ofGood Morning America.

Roberts' reporting covered developments in finding donor matches for cancer patients particularly people of color.

Robin Roberts

Robin Roberts on ‘Good Morning America’.ABC

“There was no one for me.

So, if my sister had not been the match…” she continued.

“Now, 10 years later, it’s amazing.

I just know the families, it gives them hope.”

Good Morning Americaairs daily at 7 a.m.