One of the burglars was armed with a suspected gun, one with a hatchet and one a crowbar.
Ballymena United fear fresh damage to their pitch will result in a delay to hosting games at the Showgrounds.
Glenavon overtake Linfield at the top of the Irish Premiership table with an easy win over 10-man Ballymena as Coleraine are held at home by Institute.
Crusaders boss Stephen Baxter is expecting a stern test from Ballymena United as the teams aim to build on opening victories.
Ballymena locals react to Ian Paisley suspension