ALAMEDA -- The Raiders placed cornerback D.J. Hayden on season-ending injured reserve Wednesday, two weeks after Hayden suffered a groin injury at practice.
The injury turned out to be a sports hernia, which necessitated surgery to repair the damage. That was performed Tuesday.
Hayden was the Raiders' first-round selection in this year's NFL draft. He intercepted one pass, recorded 28 tackles and broke up two passes in eight games, though he failed to make much of an impact as the nickel back.
"He had some times where he played really well, and some times where he looked like a rookie out there," coach Dennis Allen said. "But for where he's at, for the things that he's had to go through, I was pleased with his progress."
Hayden missed considerable time during the offseason and training camp as a result of a surgery to remove scar tissue from his abdomen in late May.
He also was slowed by his recovery from surgery a little more than a year ago to repair a ruptured artery that he suffered in a practice while at the University of Houston.
General manager Reggie McKenzie selected Hayden at No. 12 -- McKenzie said the Raiders would have picked Hayden at No. 3 if they hadn't been able to trade down -- though there were question marks about a player who suffered a near-fatal injury and hadn't played football in almost six months.
Hayden missed the past two games, and he hasn't been available for comment since he injured his groin.