In the spirit of March Madness, NFL.com has set up a bracket of its own to determine the greatest NFL team of all time. Fans vote on each matchup to determine which teams continue on to the next round.

The tournament, which began with 64 teams, is down to the Elite Eight with the 1998 Broncos up against the 2000 Ravens. Other matchups are: 1985 Bears vs. 1981 49ers, 1976 Raiders vs. 1999 Rams and 1989 49ers vs. 1984 49ers.

The ’98 Broncos are a three seed in the Don Shula Region. The team began the season with 13 consecutive victories and finished the year with a 34-19 win over the Falcons in Super Bowl XXXIII.