Indianapolis Colts punter Rigoberto Sanchez says he couldn't be happier to return to practice on Wednesday ... describing the "crazy roller coaster" he's experienced since his recent cancer diagnosis.
As we previously reported, 26-year-old Sanchez underwent surgery for a cancerous tumor earlier this month ... days after feeling "kinda weird" during practice on Nov. 25.
Sanchez says he notified team staffers about feeling off ... and they instructed him to get checked out with an MRI and ultrasound.
That's when Sanchez got the news -- he had cancer.
"It's one of those things that you just never think is gonna happen to you.