McFadden chasing short-term Sunderland contract
The Daily Star says O'Neill has handed McFadden a chance to kick-start his career at Sunderland.
The 29-year-old free agent hopes to earn a short-term deal after being invited to train with the Black Cats.
The Scotland midfielder has been without a club since his release this summer by Everton.
Meanwhile, Sunderland's Titus Bramble is sweating on a new contract offer.