Collins and Dunne were fined two weeks wages for their behaviour towards members of the coaching staff during a team bonding session at a health spa three weeks ago.
But Houllier says the matter has been consigned to history and is poised to bring the experienced duo back into the side now they are recovered from shoulder and calf injuries respectively. Dunne and Collins proved their fitness when on international duty for the Republic of Ireland and Wales.
Houllier said: "The only thing I can say is that the events (involving Dunne and Collins) are finished. It has been dealt with, it is gone and over.
"The players expressed their will to the club and to myself that they want to give their best for their fans and the club. It is good.
"They were unfortunately both injured for the last game against Wolves but they are available after playing for Ireland and Wales. If they are fit, they will play. It is as simple as that because they are personality players and they have the club at heart. They have also strong experience."
Source: PA
Source: PA