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In page Soldier Field:

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*The stadium was host to 41 College All-Star Games, an exhibition between the previous year's NFL champion (or, in its final years, Super Bowl champion) and a team of collegiate all-star players prior to their reporting to their new professional teams training camps. This game was discontinued after the 1976 NFL season. The final game in 1976 was halted in the third quarter when a torrential thunderstorm broke out and play was never resumed.