EAST RUTHERFORD, N.J. -- New York wide receiver Domenik Hixon and offensive tackle Kareem McKenzie were forced to leave the Giants' game against the Seattle Seahawks in the first half with concussions.
Hixon, who was starting for the suspended Plaxico Burress, was hurt late in the second quarter after taking a helmet-to-helmet hit from cornerback Josh Wilson after falling to catch a 16-yard pass. Wilson had replaced Jennings.
Hixon had four receptions for 102 yards, including a 32-yard touchdown catch for the Giants' first score.
McKenzie was replaced by Kevin Boothe at the start of the series on which Hixon was hurt.
Jennings left after the Seahawks' second series on defense.
The injury to Branch, who underwent major knee surgery after last season, was announced at the start of the second half. He had three catches for 31 yards.