You can add Ellison to the growing line of troubled Trojans who have been brought in since Pete Carroll took the reigns for the Seahawks.
Former USC All-American receiver Mike Williams and former Trojan running back LenDale White, both of whom have had well documented troubles on and off the field, have been the biggest two former Trojan names to be brought in.
White was released only weeks after being acquired via trade during this year's draft, while Williams has been impressive in minicamp and OTAs.
As for Ellison, he started nine regular season games and one playoff game at strong safety as a rookie in San Diego.
But in May of this year, Ellison was arrested after authorities found 100 Vicodin pills in his vehicle.
Ellison will be competing with Lawyer Milloy, Kam Chancellor, and Jordan Babineaux for time at strong safety.
If he can keep the off-field woes at bay, the Seahawks have added a young (23) starting-caliber safety with playoff experience and a player that adds much-needed depth to the Seattle defensive backfield, significantly strengthening the competition at this spot going into camp.
There is a possibility that a suspension may loom for Ellison, although a decision on this probably won't be made by NFL Commissioner Roger Goodell until after Ellison's court hearing in July.
For more Seattle Seahawks discussion and analysis with Derek Stephens, visit The Blue Bird Herd .