Keane joined Celtic on loan from Tottenham on Monday.
“There’s no reason why we can’t have a chance,” Keane told the Scottish Daily Express.
“I need a few games and we need to put a run together. There’s every chance because there’s a long way to go.
“It was disappointing not to win at Kilmarnock. We were the better team and had a few chances but it was not to be.
“We just have to move on now and look forward to the next game.”