(c)1989 NFL; NBC–Comcast This part (a fragment of the Super Bowl XXIII postgame report following the San Francisco 49ers’ thrilling 20-16 victory over the Cincinnati Bengals) begins with Dick Enberg and Merlin Olsen discussing the game; with Merlin suggesting that the Bengals defense having exerted so much emotion with the Tim Krumrie injury that they wore down, then discussing the 49ers’ perform…