IMS, Andretti, Castroneves, Sato add Unser tributes

Along with tributes from Roger Penske, Rick Mears, Parnelli Jones and A.J. Foyt, several other luminaries sent out messages of sadness after the passing of four-time Indy winner and three-time champion Al Unser.
Indianapolis Motor Speedway put out a special video tribute to its second four-time winner Unser: 

The Speedway also showed the tributes on its Pagoda and pylon …Keep reading