Report: Luck in Europe seeking treatment on injured shoulder

Andrew Luck is in Europe seeking treatment on his throwing shoulder, sources told ESPN's Mike Wells and Chris Mortensen.

The Indianapolis Colts' star quarterback was placed on season-ending injured reserve last week after his recovery from January shoulder surgery stalled.

Luck was expected to return in the early part of the campaign, but his recovery dragged into the midseason. He briefly returned to practice at the start of October, but suffered a setback, with lingering pain in his shoulder requiring a cortisone shot sidelining him once again.

The Colts have insisted Luck's injury isn't career-threatening,