The big Dutchman was given a two-match ban by the Match Review Panel after he stamped on the foot of Brebner during the first-ever Melbourne derby and on the eve of his return, Sibon has apologised for his uncharacteristic actions.
“What can you say? It was something which I shouldn't have done and I regret it,” he said. “These things happen and it's emotional sometimes. Thank God I didn't injure him.
“The penalty is fair, but the way it went is a bit weird. But it's all past now. I can't do anything about it.
"Any time is not the best time to get a suspension, but I could have helped the team in the past two games and I think we could have got more than two points."
Sibon is back for the Heart’s away clash against Newcastle Jets on Sunday and says things are looking positive leading into the Week 12 fixture.
"The whole team is getting better. We're getting fitter as well and that's all got to do with playing better,” he added.
“…everyone really wants to play football and works hard and is dedicated. We work very hard to get a result and it's good to see everybody is enjoying it.”