Navas, however, believes it is the price of success.
"There are a lot of games," he told the Manchester Evening News. "But the reason is because we are battling on every front. It's not a complaint."
The flipside to that argument is that many take a season to adjust and fire on all cylinders the following campaign - the opposite of second album syndrome.
"That might be right," said Navas. "All players want to better themselves and keep improving."
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