The No13 took Jaaskelainen's place between the posts in January with the Finn then unable to displace him.
"[Losing your place] is part and parcel of football," he told whufc.com.
"Adrian has done very well, and the only thing I could do is keep working hard - the main thing is to support everybody in the team.
"He has been playing consistently well and that's the main aim for a goalkeeper. I can't have too much to be disappointed about.
"If you look at the season as a whole, we started by playing very well but we didn't get the results that we needed.
"When you don't get them, confidence drops and it was a tough season but we've come through it and hopefully next year will be better."
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