Five teams will be fighting for the right to be promoted from League One to the Championship alongside Norwich on the final day of the League One season.
Second-placed Leeds, on 83 points, can secure the second spot if they beat Bristol Rovers at home on Saturday.
But if they slip up, the winner of the match between third-placed Millwall and Swindon would go up, while Charlton and Huddersfield are also in the running.
Tranmere, Gillingham, Hartlepool and Exeter are fighting to avoid the drop.
Tranmere, currently occupying the fourth relegation spot, are level on points with Exeter on 48 but the Devon-based team's superior goal difference means they are just out of the drop zone.
However, Rovers' final game of the season is against bottom side Stockport, who are already relegated, while the Grecians face a far more difficult ask against promotion-chasers Huddersfield.
Town, in sixth place on 80 points in League One, have a slim chance to snatch the second promotion slot but they need a big victory over Exeter as well as the other results going in their favour.
Above them are Millwall and Swindon, who face each other at the New Den.
Both teams are level on 82 points, but the Londoners are just in front because of a superior goal difference.
Either team could still qualify for automatic promotion should they win the crucial match on Saturday afternoon and Leeds draw with or lose to Bristol Rovers at Elland Road.
Meanwhile, Charlton, who play Oldham away, could still sneak into the top two - but only if they earn three points at Boundary Park, Bristol Rovers beat Leeds and Millwall and Swindon draw.
Hartlepool were dragged into the relegation battle following their three-point deduction by the Football League on Thursday for fielding an ineligible player.
Midfielder Gary Liddle should have been serving the first of a two-match suspension rather than participating in the 2-0 win against Brighton on 5 April.
Pools have appealed against the penalty which leaves them one point ahead of Exeter on 49 points and needing a victory at mid-table Brentford to secure their League One status for next season.
Gillingham, in 18th place on 50 points, could get sucked into the bottom four if they do not earn their first away win of the season at already-relegated Wycombe at Adams Park.
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