ENGLEWOOD, Colo. -- Denver Broncos quarterback Trevor Siemian knows he has to turn the page on turnovers -- because the team's current pace will likely keep them out of the postseason.

The Broncos have six turnovers in three games -- two in each game, putting them among the league leaders -- a pace that would put them at 32 for the season. That would be five more than they had in their 4-12 finish in 2010.

"It's a billion dollar football back there," Siemian said after Wednesday's practice. "For us to win we've got to take care of the ball. And we're going to be in the game every week if we're about even in the turnover ratio."

"Again, it happened," said Broncos coach Vance Joseph. "We can't do it. He understands that. Moving forward, he'll play better from this."

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Opponents have now turned five of the Broncos' six turnovers into points. While they survived the first two games of the season, their mistakes in Week 1 quickly turned what was a 24-7 rout into a 24-21 game. The Broncos won only after blocking a Los Angeles Chargers field goal attempt in the final seconds.

This past Sunday, Siemian's two interceptions were prominent on a list of things that went wrong in a road loss to the Buffalo Bills. Denver has surrendered 64 points overall this season and 31 of them have come as a result of turnovers.

Four of those turnovers have been interceptions thrown by Siemian, a trend he's looking to curb as quickly as possible.

"It's a lot easier when you watch the tape and you can press pause," Siemian said. "I know I've got to take care of the football and how important it is for us not to turn the ball over. I'm responsible for every ball that comes my way, whether it's hand off or a throw. It doesn't matter how it gets turned over, the fact that it got turned over, that's on me."

In Sunday's loss both of Siemian's picks had field position costs. On the first one, with just over five minutes remaining in the third quarter and the Broncos trailing 20-16, the Broncos started the play at their own 12-yard line. Siemian was intercepted at the Broncos' 32-yard line. The Broncos defense held after, forcing a Bills' punt, but putting an opponent at their 32-yard line is not something that's going to work very often.

Siemian's second interception of the game came with just under 11 minutes remaining and the Broncos trailing, 23-16. That time the Broncos had moved to the Bills' 24-yard line and Siemian was intercepted on a play when he simply tried to throw the ball away.

"I've made worse throws, or [had] worse intent behind throws, I think the worst throw I made all year was when I made that throw to [Chargers cornerback] Casey Hayward in Week 1," Siemian said. "I know I can't do that to our team, because we're going to be in every game if we take care of the football."