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Tearjerker Warning: Surprise touchdown by boy with special needs thrills his ailing mom

DETROIT, Michigan - Robby Heil is always seen with a smile on his face, proudly filling water bottles on the sidelines as he cheers on his beloved Wildcats at Novi High School.

Robby has Down Syndrome and his mother, Debbie, has advanced cancer.

"This team has just been so instrumental in helping me get him to practice while I'm at chemo," Debbie Heil told WDIV.

The team told both mother and son that Robby would get to play in Friday night's game against their South Lion opponents.

But what they didn't know is that both teams had a huge surprise in store that would make Robby's dream come true.

Robby had always wanted to score a touchdown, and as a teammate handed him the ball, the high school senior ran as fast as he could for 20 yards into the end zone, as his mother fell to her knees.

"It was incredible! I did not know about this," Debbie said.

"An opportunity to put that helmet on tonight, it brought tears to my eyes tonight and I'm pretty sure there were tears all over the place," Novi High School Coach Jeff Burnside said.

In a show of true sportsmanship, the opposing team also presented a jersey to Robby.

"Because that's way more important than football, way more important than football," the South Lion coach said.

As for Robby, the boy who's always smiling is smiling even bigger now, after hearing his name cheered from the stands.

And Robby joined right in, "Wildcats is Robby Heil!"