Iconic courtside reporter Craig Sager made his long awaited return on March 5 during an exciting matchup between the Chicago Bulls and the Oklahoma City Thunder. And while there was much love that awaited Sager upon his return from fans and the entire NBA family, he announced shortly thereafter via Twitter that he would not be able to cover the NCAA men's basketball tournament as previously scheduled.

"I've been waiting a long time to return in a full-time basis, but my doctors suggested additional testing and I will not be able to travel to Omaha this week. Physically, I feel great. I'd like to thank everyone for the overwhelming support throughout this journey and look forward to being back very soon," Sager said through a statement tweeted out by Tuner Sports.

Unfortunately, and most recently, his family revealed some dire news saying that his leukemia has returned.

"Sr. is battling his newest set of obstacles, but unlike the first time when everything was new, there is a blueprint in place and all focus is on one checkpoint at a time. Sr's leukemia returned last week and he undergoing treatment that will be much like this time last year when he got rounds of chemo and prepared his body for bone marrow transplant. The flu was going around and he caught it, but he was able to get his fever down and got to go home for the day before he returns to outpatient treatment in the morning. Beating the flu is a main priority right now. There are constant changes as we learned from the last 11 ½ months, but we will try to keep you as up to date as we can. Thank you for all the Sager love," said a statement released by his son Craig Jr. via Twitter.

Sager was initially diagnosed with acute myeloid leukemia back in April 2014.