DENVER, CO - AUGUST 18: Quarterback Peyton Manning #18 of the Denver Broncos throws a pass during the first quarter against the Seattle Seahawks at Sports Authority Field Field at Mile High on August 18, 2012 in Denver, Colorado. (Photo by Justin Edmonds/Getty Images)
The Broncos turned the ball over on half of their six first-half possessions with Manning under center, including an interception in the red zone for the second straight week.
Their 2-minute drive stalled when Jacob Tamme dropped a wide-open touchdown toss with 6 seconds left in the first half.
The biggest positive for the four-time MVP who's returning from a neck injury that sidelined him all of 2011 is that he took his first big hit in 19 months and bounced right up.
Manning shook off defensive end Bruce Irvin's hard hit and completed a 22-yard pass on the next play.
(Copyright 2012 by The Associated Press. All Rights Reserved.)