Philadelphia Union's Freddy Adu, Michael Farfan and Amobi Okugo headed to Europe for offseason training

(Michael Perez/AP file photo)

The Philadelphia Union announced Monday morning that three more of the team's players are heading to Europe for offseason training work.

Chief among them is midfielder/forward Freddy Adu, the Union's most expensive player. He is leaving Philadelphia today to spend two weeks with Turkish powerhouse Galatasaray.

It is not the first time Adu has been to Turkey, as he played for second-division club Çaykur Rizespor on loan in 2011. That was Adu's last European destination before returning to the United States to join the Union.

Meanwhile, midfielder Michael Farfan and defender Amobi Okugo are headed to Germany to train with SC Freiburg of the top-level Bundesliga. It is Okugo's second consecutive offseason trip to Freiburg, having also gone there a year ago.

Adu and Farfan also spent time overseas last offseason. Adu trained with Spanish club Rayo Vallecano, and Farfan trained with English Premier League stalwart Sunderland.

The total number of Union players spending time in Europe this winter now stands at six. Goalkeeper Zac MacMath trained with Everton of the English Premier League; forward Cristhian Hernández trained with Real Sociedad of Spain's La Liga; and midfielder Jimmy McLaughlin is currently with TSG Hoffenheim of Germany's Bundesliga.