Levi Wallace always knew he'd have at least one fan in the stands when playing football.
"He came to every single game, no matter what time. Always supported me. Always got me the best equipment, best shoes, whatever I wanted. Just the type of father that you want," he said.
As Levi's game grew, Walt Wallace began a battle of his own.
"I really wasn't sure what ALS was,” the younger Wallace admitted. “I did a little research here and there, but just thinking that my dad can beat anything. He's going to be alright. I know I'm going to have plenty more years with him."
With no scholarship offers coming out of high school paired with his father's recent diagnosis, Levi offered to stay home near Tucson for college. But at the urging of dad, a life-long Alabama fan, his son headed off to Tuscaloosa with football behind him.
That changed after just a few months on campus.
"Had a conversation with him after the ‘Kick-Six’ game with Alabama and Auburn,” he recalled. “I was kind of upset that Alabama lost. I went to the school now. That's my team growing up, so he said if I wanted to do something about it I should join the team. Walk-on and see where it takes me."
"I wasn't ready to give up football yet,” he added. “I loved it. He knew that I loved it and he wanted me to pursue my dreams and I definitely appreciate him for all of that encouragement that he gave me."
Early the next semester, Levi walked-on to the Crimson Tide and was now a part of his father's beloved team.
But his father never saw his son suit up.
"It was right before our first spring game my freshman year."
Walt Wallace succumbed to ALS in April 2014.
Attempts by Levi's family to keep the news from him until after the game failed, with Wallace feeling the best way to deal with the loss was to play.
"It's just something I knew he'd want me to do. I knew my dad very well and I know that he wouldn't want me to let this keep me away from my dream of playing for Alabama," he said.
After two years as a walk-on, Levi earned a scholarship and won two national titles with the Tide, fulfilling a dream for two.
"I'm always thinking about him," he said.
It's not just football.
"You know I still haven't learned how to shave, so I always think about that a lot that he hasn't taught me that."
"The other day I was thinking I haven't talked to him in a long time, maybe I should call him,” he said. “It just kind of brings back a little sad memories, but I always know he's rooting for me up there and every lesson that I've ever learned is going to get me through making the team here with the Bills."
Wallace is once again one of the last ones in the door trying to stay and once again is battling with a bigger purpose.
"It'd be a huge accomplishment, but I just don't want to end there with just making this team. I want to do more. I want to not only be great on the field, but off the field as well. In the community doing things for ALS with the platform that I have here at the Bills in honor of my father."