Defeat to Cavan today means that Roscommon’s chances of a place in Division 1 next year are under threat.
Davy Burke’s men lost by two points, missing out on top spot heading into the final round.
The Rossies are still in second, and a win over Westmeath should see them through.
Monaghan are top of the table on 10, Roscommon are level with Meath and Cavan in the chasing pack on 8.
Full time from King & Moffatt Dr. Hyde Park:
Roscommon 0-20 Cavan 0-22