The troubles for the Philadelphia Eagles have already begun.

According to the Philadelphia News, Eagles starting right tackle Lane Johnson will miss the first four weeks of the NFL season after violating the NFL policy on performance enhancing substances.

Johnson, 24, was a standout tackle at the University of Oklahoma, and was drafted fourth overall in the 2013 NFL Draft.  Johnson started all 16 games at right tackle for the Eagles, and was a big reason for the success of the offensive line in the 2013-14 season.

The subtraction of Johnson will be a huge hole that will need to be filled by the Eagles.  There are a few possible scenarios for the Eagles of who may fill in including Allen Barbre, but the team will have little depth to support the position.

Johnson will be able to participate in training camp and the first four games of the preseason, but will be suspended for the first four games of the regular season.  The second-year tackle will miss big games against the Jaguars, Redskins, 49ers, and Colts to start off the season.