The 26-year-old midfielder, who has 12 senior caps, was tipped to make it into Roy Hodgson's squad for the friendly with Denmark earlier this month after embarking on a blistering run of form for his club.
Johnson told The Journal: "I think a lot of people saw me as almost a certainty [for the Denmark squad], but if you look at the last squad it was almost all top-eight [players] bar [Cardiff defender Steven] Caulker.
"I think that says a lot about the selection. I don't think it really matters how well you are playing - it's who you play for.
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