Ex-Saint-Etienne, Monaco, West Ham striker Piquionne joins Portland Timbers
Piquionne will take up an international roster spot in Portland and comes to the club with a fairly strong pedigree.
"Frederic made a strong impression during his trial and gives us another quality piece in the striker position," said Timbers head coach Caleb Porter.
"He is a proven professional at a high level and helps our depth with Bright Dike out. We are very pleased about this addition to our club."