The Dane became first choice earlier this year following a string of poor performances from the Spaniard, but an ankle injury ruled him out of the rest campaign, allowing the 21-year-old regain his place.
Lindegaard's frustrations were compounded, furthermore, when his lack of games prevented him from playing at Euro 2012, and these setbacks have made him more focused to get back his spot between the sticks with the Red Devils.
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"I want the No.1 spot because I am the best. I don't want it because he [De Gea] is injured or he is not here," the keeper told reporters.
"I am sure he is a bit in front right now because he did well last season, so I need to take every chance I get to prove myself worthy of the No.1 spot."
Despite his bad luck last term, the 28-year-old is trying to look forward at both club and international level as he feels that his disappointment could affect his form in the future.
He added: "If you look at it objectively, it was maybe one of the worst situations a football player has ever been in.
"I had worked for that spot since I was four. From the first time I touched the ball, that is what I dreamed of.
"It has been a very frustrating period, from the day I got injured until after the Euros.
"But I have to try and use it in a positive way. The disappointment was so big, if I let it drag me down, I will never get out of that hole again."