After FA Cup elimination by Wigan Athletic, Keane said: "Listen, how many games have we lost this year? We have lost lots of games this year.
"I sound like an old record player, but we have got to work harder, we have got to bring in one or two players and we keep persevering.
"You have to persevere in life. We have a tough game (against Portsmouth) next week.
"We gave players a chance on Saturday, we are chopping and changing, we are bringing players in.
"We brought Jonny back in and we will maybe have one or two for next week - but that is a big if."