On retirement day, Brandon Graham gets the last laugh with the Eagles after 15 years

You might have heard the laugh before you saw the man — on Tuesday, and for 15 years. 
To call it a laugh doesn’t do justice to Brandon Graham. It’s a cackle. A trademark. Play that sound for any teammate, any coach, any Eagles employee, and they could identify the person just by that sound. They would probably smile, too. Because you know Graham is — even on retirement day. 
“One more year,” he joked while dapping everyone in the auditorium. 
If only. There have been enough “one more year” decisions. He didn’t know if he would make it to Year 5. Year 10 was an achievement. But to last 15 years? That’s beyond anyone’s dreams. And to endure in a career that included a...