Mega-gone: Calvin Johnson retires from NFL at age 30
When Calvin Johnson retired, he left a Hall of Fame legacy that
Calvin Johnson says Detroit Lions' constant losing factored into
Understanding Lions WR Calvin Johnson's quiet retirement - Sports
NFL: Detroit Lions star Calvin Johnson set to retire
The Life And Career Of Calvin Johnson (Story)
Detroit Lions great Calvin Johnson willing to mentor rookie WR
Understanding Lions WR Calvin Johnson's quiet retirement - Sports
As he turns 30, Megatron still blessed with many gifts
Calvin Johnson Retired in His Prime, But Where is Megatron Now
Understanding Lions WR Calvin Johnson's quiet retirement - Sports