Atlanta placed Koo on injured reserve Wednesday, after the kicker is believed to have aggravated a right hip injury in Monday's 15-9 win over the Raiders, Terrin Waack of the Falcons' official site reports.

The Falcons are expected to place Koo on injured reserve this week after he suffered an undisclosed injury in Monday's 15-9 win over the Raiders, Ian Rapoport of NFL Network reports.

Head coach Raheem Morris said that Koo "kind of hurt himself a bit" in Monday's 15-9 win over the Raiders, Terrin Waack of the Falcons' official site reports. "We'll figure it out more [Wednesday] after the medical things get in," Morris said.

Koo made both field-goal attempts and his only extra-point try during Sunday's 42-21 loss to the Vikings.

Koo made two of three field-goal attempts and his only extra-point try during Sunday's 17-13 loss to the Chargers.

Koo (hip) is active for Sunday's game against the Chargers.

Koo (hip) is listed as questionable for Sunday's game against the Chargers but is expected to play, Will McFadden of atlantafalcons.com reports.

Koo (hip) was listed as a limited participant on Thursday's injury report, Daniel Flick of SI.com reports.

Koo made both of his two field-goal tries during Sunday's 38-6 loss at Denver.

Koo missed three of four field-goal attempts but made both extra-point tries during Sunday's 20-17 loss to the Saints.