Northampton's hopes of automatic promotion from League Two took a blow after their goalless draw at Wycombe.
The Cobblers must hope Rotherham and Burton fail to win either of their final two games to have a chance of securing third place.
Northampton's top scorer Adebayo Akinfenwa came closest to breaking the deadlock by hitting the bar with a second-half header.
Akinfenwa had another header saved soon after to ensure the stalemate.
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