Three goals in the opening 26 minutes see Portadown beat Ballymena to set up an Irish Cup final meeting with Glentoran.
Crusaders take on Glentoran in the opening match at followed by the clash between Ballymena and Portadown.
Ballymena issue a plea to supporters for good behaviour at Saturday's big Irish Cup semi-final against Portadown.
Ballymena United manager Glenn Ferguson hopes his side can continue their Irish Cup heroics by beating Portadown in Saturday's semi-final.
Crusaders maintain their six-point lead at the top of the table thanks to a battling win over Ballymena United.
Latest scores from Saturday's five matches in the Irish Premiership, including leaders Crusaders' trip to Ballymena United.
Crusaders will meet Glentoran at Mourneview Park in the Irish Cup semi-finals followed by Portadown against Ballymena at the Oval.
The latest score from the early kick-off Irish Cup quarter-final between H&W Welders and Ballymena United.