The day after Craig Sager Sr. received a stem cell transplant from his oldest son on June 4, 2015, he wrote him and his two oldest daughters out of his will, according to legal documents received by his son.

Sager Jr., 29, has been processing his emotions over this upon learning about the timing of the will change in late December.

Behind the scenes of Craig Sager's cancer battle

Sager Sr. worked as a sportscaster at WINK-TV in Fort Myers in the 1970s before moving on to Kansas City. He attained national fame with his flamboyant, multicolored suits and ties as the NBA sideline reporter for Turner Sports from the 1990s until his death at age 65, Dec. 15, 2016, from acute myeloid leukemia.

One year later, sheriff's deputies repeatedly contacted Sager Jr., notifying him the court wanted him to sign paperwork stating he and his two sisters would not attempt to contest the will.

Sager left his inheritance to Stacy Sager, his second wife and a former Chicago Bulls dancer whom he married in 2003. Together, they have a son and a daughter.

Kacy and Krista Sager, Sager Jr.’s sisters from their father’s first marriage, also were not included in their father’s will. Through their brother, they declined to comment. Kacy works for Turner Sports in statistics and also with her brother at Score Atlanta. Krista is a financial aid adviser at a school in Tampa.

The three siblings were caught in the middle of their parents’ “horribly messy divorce” in 2001, Sager Jr. said. He was 13 at the time.

“My sisters and I were relieved they were separated finally and just wanted both sides to be happy,” he said. “We deserved better, and putting us in this situation after all we have been through … is unacceptable, and I want my generation to hear me loud and clear.”

The three oldest Sager siblings have made national news over the last week, sharing some of their emotions of anger and sadness over the will and the situation on Twitter.

Sager Jr. and Sr. traveled together to Fort Myers in the summer of 2013, when the Fort Myers Miracle baseball team made Craig Sager bobblehead dolls for fans, prior to his cancer diagnosis.

One year after Sager Sr. died, the drama over his death intensified.

“We literally had them coming the week of the one-year anniversary of his death, and all we were shown was the will that we are not even included in,” Sager Jr. said of the deputies. “The whole probate and estate world is starting to make a little more sense now that people have looked into the situation and even written articles about the process, but the three of us still do not know any dates or what we are being asked to do. At this point, we are just being rushed to court so we can never contest a will that we never want to contest."

NBA broadcaster Craig Sager, revered in Fort Myers, dies at 65

Under Georgia law, heirs must be served an opportunity to contest the will if they are not beneficiaries, said Cantrece Gober, who was assigned Sager's case. She is the deputy clerk of the Cherokee County, Georgia probate court.

Sager Jr., an Atlanta sportswriter for Score Atlanta, which covers high school and other sports topics in Atlanta, said he’s not mad at his father, but he’s mad at the situation and confused about the timing.

“There are two things I’m upset with right now,” Sager Jr. said. “The first is that my sisters and I have always tried to be supportive and really haven’t asked for anything.

“I don’t want the money. But I have two sisters, and I don’t want to have to worry about getting caught up in a legal situation when we don’t have enough money to hire a lawyer, enough is enough.

“The second thing that is upsetting to me is the timing of when the will was written. It was written the day after I left Houston after trying to save his life a second time. It just doesn’t make sense to me that after receiving that horrible, horrible news, that that was the moment. I just don’t understand that thought process as far as what we were as a family at that point.”

Sager Jr. and Sr. co-wrote a book together, “Living Out Loud: Sports, Cancer and the Things Worth Fighting For,” which was published in 2016.

Sager Jr. also co-wrote a 50-year history of the Atlanta Falcons.

Sager Jr. has focused on his career after living the bulk of his life wanting to emulate his father’s.

In 2014, with his father recuperating from his first cancer treatments, Sager Jr. appeared in his place on TNT as a guest NBA courtside reporter. Subsequent attempts to work for TNT have not panned out.

“I see that industry has a lot of change, Turner especially,” Sager Jr. said. “A lot of the guys my dad used to work with aren’t there anymore. There are a lot of new people. I probably spent the first 27 years of my life dreaming about the dream that it would one day be my dad and I working together. It was never going to be about us working together. It was about him and his outstanding career. I wanted to make sure I did everything I could do to honor him.”

Sager Jr. said that aside from his shock over the will situation, he is ready to make 2018 a better year than the last, which for him was filled with grief.

“My dad and I had a relationship that was always competitive and career driven,” Sager Jr. said. “I think that I can continue to make him proud. I think I embody a lot of what he established in the industry. I really have spent a lot of my life admiring everything about my dad. For me to say I’m mad at my dad would mean that I’m mad at myself.”

Connect with this reporter: David Dorsey (Facebook), @DavidADorsey (Twitter).