The third-choice keeper has been handed his chance in the Reds' starting XI after suspensions to Pepe Reina and Alexander Doni, with the Australian now in line to take on the Toffees on Saturday.
The 30-year-old admitted that his five-year-old son Lucas, who sadly lost his battle with leukaemia last year, would be looking over him, as he prepares for the showdown.
"Luca is with me every day. I carry him everywhere," he told The Telegraph.
"His face is on my washbag and his toys are in my travel bag. In that sense I’ve got someone looking over me.
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“It’s been difficult not being involved and with everything that has gone on. But I’ve trained as hard as I can and hopefully that will stand me in good stead.”
He also reflected on the extraordinary series of events that saw him take to the pitch in the 3-2 win against Blackburn on Tuesday, with stand-in keeper Doni sent off in the first half, and expressed his delight at being able to play a part in Liverpool's quest for their second trophy of the season.“It hasn’t really sunk in yet. It wasn’t something I was expecting," he added.
"After the red card [for Doni] it was a case of getting focused and being ready. These things can happen and when you are on the bench as a goalkeeper you have to be prepared.
“It’s going to be a big occasion against Everton. I have to make sure I do the right things and it’s going to be an extra special day. It’s massive just to be a Liverpool player. I’m as proud as anyone to do that and be part of this club."