FILE — Dallas Cowboys coach Jimmy Johnson, left, and running back Emmitt Smith celebrate as they leave the field after their 38-21 NFC Championship win over the San Francisco 49ers Jan. 23, 1994 in Irving, Texas. The Cowboys meet their former coach, Jimmy Johnson, coach of the Miami Dolphins, on Sunday. (AP Photo/Ron Heflin)
FILE — Dallas Cowboys coach Jimmy Johnson, left, and running back Emmitt Smith celebrate as they leave the field after their 38-21 NFC Championship win over the San Francisco 49ers Jan. 23, 1994 in Irving, Texas. The Cowboys meet their former coach, Jimmy Johnson, coach of the Miami Dolphins, on Sunday. (AP Photo/Ron Heflin)