Photo: Leeds United website/www.leedsunited.com |
The Cumbrian, who saved two penalties in the League One play-off final shootout win over Leyton Orient, has made just two appearances this season.
He started as number two behind Kelle Roos before making two appearances, only to be replaced by Lee Camp.
And Redfearn admits Collin wants to play games.
"Alex is coming to compete for a place, whether Adam Collin goes out we will have to wait and see," the boss said.
"Adam was first choice and he is looking for that sort of role but Lee Camp is playing well, he is the number one choice and it is frustrating for Adam.
"But we want to bring competition in anyway. It’s a bit of a dicey ground just having two keepers, you should be having three.
"Adam has been very patient, but Lee is playing well. To be fair he has been a good professional but the conversation I have had is that he wants to play."
Cairns only made one substitute's appearance for Leeds before being released in the summer and Redfearn is in no doubt of his credentials.
"Alex was number two to Paddy Kenny at Leeds, he is a young goalkeeper, a very strong boy with a strong character.