They now go to Denver Sunday with a 2-3 record after suffering a 26-21 loss to the Pittsburgh Steelers.
Unless they beat the Broncos, they'll be 2-4 at their bye week and they'll be a long-shot to get a wild-card berth.
Their AFC South division hopes are hanging by a thread even if they beat Denver because the Tennessee Titans are 5-0. If they do beat Denver to go 3-3 at the break, they'll probably be looking at a wild-card spot.
This is the fourth time in the last five years that the Jaguars have met Denver. The Jaguars beat the Broncos 7-6 in 2004 and 23-14 last year, but lost 20-7 in 2005.
The problems for the Jaguars is that they have trouble pulling out games at the end. All five of their games have come down to the waning moments, but they've lost three of them.
After rallying for victories in the waning moments of the last two games, the Jaguars couldn't get it done on offense and defense in the final six minutes.
The defense couldn't stop Ben Roethlisberger from driving the Steelers 80 yards in 11 plays in 4:40 for the game-winning drive.
Roethlisberger, who completed 26 of 41 for 309 yards, climaxed the drive with an eight-yard touchdown pass to Hines Ward in the right corner of the end zone.
The Jaguars got the ball back with 1:48 left in the game on their 26, but this time David Garrard couldn't put together a game-winning drive. They got only one first down before turning the ball over on downs when Aaron Smith batted down a fourth-down pass with 25 seconds left.
Garrard saluted Roethlisberger for making an 18-yard throw that set up the game-winning throw.
"There's really nothing you can say about that but just look in amazement. It was an amazing play. I've never seen something like that before in that situation with the game really on the line. Guys are pulling him to the ground and he throws it 20 yards down the field on the money. It wasn't a jump ball or anything. It was on the money. He kind of joked to me after the game saying I was really throwing it away. We'll probably see that play on SportsCenter quite a few times. I have a lot of respect for him. When the game is on the line, you've got to step up and make those plays," Garrard said.
The Jaguars took over on their 26 with 1:48 left and Garrard felt confident the Jaguars were going to drive for the winning touchdown.
Garrard said, "We felt great. Once again (I thought) here we go. I believe. We just didn't make the plays necessary. It's tough. You're not going to drive down and do it every time. We believe every time we have the opportunity, we can do it. They went down and drove when they needed to so we need to do the same."
They didn't and have dug a hole for themselves.
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