Blood donors will receive a T-shirt with an illustration of Howard and Sager with the hashtag #SagerStrong.
Dwight Howard wanted to do something nice for sideline reporter Craig Sager who is currently battling acute myeloid leukemia at M.D. Anderson in Houston.
"I know a lot of people deal with different types of cancers and leukemia," Howard said. "Craig is a close friend of mine and our family. He's a part of the NBA family. You hate to see anybody who is a part of you go through anything. I just want to do whatever I can to help.