Glenavon have been relegated from the Irish Premiership after Fraser Bryden's second-half goal gave Crusaders a 1-0 win over their fellow strugglers in their basement battle at Mourneview Park on Saturday.
The Crues striker fired home his 22nd league goal of the season to put five points between the teams with just one set of fixtures remaining.
The result condemns the Lurgan Blues to Championship football next season and secures Crusaders' place in the promotion-relegation play-off which will decide whether they preserve their top flight status.
Glenavon last played in the second tier in the 2004-05 season.
They lost their first 11 games this term but clawed their way back into contention to avoid automatic relegation under new manager Michael O'Connor, though ultimately their efforts fell short.
Crusaders earned a first Premiership win since 3 January when they beat Portadown last week and they followed that up with a crucial win over Glenavon this week.
Meanwhile Coleraine gave themselves a chance of lifting the league title next week as they defeated Linfield 3-0 at Windsor Park to move second in the table, above Glentoran on goal difference, and three points behind leaders Larne.
The Bannsiders host the Glens next Saturday, with the second-place finishers ensuring an automatic route into European football.
Cliftonville beat Dungannon Swifts 1-0 in the other game in the top half, while in the bottom six, Carrick Rangers saw off Bangor 3-0 and Portadown were 2-1 victors over Ballymena United.
More to follow.
