Kelly, a longtime Knicks fan, said he "probably shouldn't even be here" but his daughter made the Dean's list and this is how they were marking the occasion.
Kelly's first chemotherapy treatment is scheduled at Lenox Hill Monday.
Kelly's treatment plan was outlined Tuesday by Dr. Peter Costantino of Lenox Hill Hospital in New York City, where the longtime Buffalo Bills star is being treated for a sinus cancer.
Costantino says he's confident the regimen has a good chance of success. If not, he says Kelly's skull-base tumor remains operable.
Kelly underwent surgery in Buffalo last June to remove cancerous cells from his upper jaw.
The chemotherapy and radiation will target cancer cells in his maxillary sinus and adjacent tissues.
In 11 seasons with the Bills, Kelly appeared in four consecutive Super Bowls in the 1990s. He was inducted into the Pro Football Hall of Fame in 2002.