Despite a struggle for form and fitness so far this season, many Norwegian fans held on to the hope that the 32-year-old would be able to take part as a reserve, but Northug's name was absent when the team was announced on Wednesday.
"Petter has said that it's not on the agenda. He is not maximally prepared, he is still sick and therefore not at one hundred percent," Northug's coach Stig Rune Kveen was quoted as saying in newspaper VG.
Winner of 13 World Championship gold medals, Northug has also netted six Olympic medals for Norway, including two gold, a silver and a bronze at the 2010 games in Vancouver and two bronze medals in team events in Sochi four years later.
(Reporting by Philip O'Connor; editing by Alexander Smith)
