Tashawn Manning was supposed to be enjoying the best weekend of his high school career.

Slated to attend the Iron Bowl as an Auburn commitment, basking in the excitement on the sideline and dreaming of next fall, Manning instead remained in the Orlando area.

The culprit: cancer.

According to the Orlando Sentinel, the three-star defensive tackle was diagnosed with Acute Promyelocytic Leukemia — on Thanksgiving.

Instead of the best view in the house for the Iron Bowl, Manning got his first chemotherapy treatment. His father, Buck Manning, told the Orlando Sentinel that the 6-foot-4, 260-pound high school senior has a 90 percent chance of beating the disease.

Manning’s initial diagnosis was pneumonia, but after taking antibiotics, he just got worse. An emergency room trip led to more blood tests and a bone marrow test, as doctors eventually realized it was APL afflicting his body.

Ironically, this is not the first time APL has struck the Auburn family. Current starting left tackle Shon Coleman was diagnosed was APL soon after faxing his National Letter of Intent in 2010. He did not play football for two years while battling the disease.

The Wekiva High School (Apopka, Fla.) senior will not get to enroll early at Auburn. His immune system remains compromised, and he will devote his full attention to fighting cancer.

Still, Auburn and coach Gus Malzahn have ensured the Manning family that he’ll remain part of the program’s future, and that when he recovers, the scholarship will remain.

“We talked to Auburn and they said they got his back and they support him 100 percent; that he’s part of the Auburn family,” Buck Manning said, according to the Orlando Sentinel.