U.S. Soccer complaint claims Lyon tampered with Portland's Long - source

The U.S. Soccer Federation has filed a complaint with FIFA, charging Olympique Lyonnais owner Jean-Michel Aulas with tampering with an under contract player, a source confirmed to ESPN FC.

Sports Illustrated was the first to report the news.

At issue is a tweet that Aulas directed at U.S. international midfielder Allie Long, who plays for the Portland Thorns in the National Women's Soccer League. Aulas invited Long to join up with U.S. teammate Alex Morgan at OL next season.

The tweet drew a sharp rebuke from Portland owner Merritt Paulson, who reminded Aulas that Long is still under contract.

The source alleged that in addition to his tweets, Aulas has also made private, direct overtures to Long about joining Lyon.