"Ultimately calls for your team and against your team balance out," Karl Mecklenburg said of the officiating in the Broncos-Eagles game.

The Denver Broncos pulled off a stunner on Sunday, storming back from a double-digit fourth-quarter deficit to hand the defending Super Bowl champion Philadelphia Eagles their first loss of the season in a shocking 21-17 upset victory.

Sean Payton set a serious tone as the Denver Broncos took off across the pond for an International Game in London vs. the New York Jets. From the mean streets of Philadelphia, all the way to the sleepy hollow of Waltham Abbey in Essex, England, the championship ambitions of the Denver Broncos are well travelled already.

The Denver Broncos have been through a lot over the last decade, but George Paton has made crucial decisions to save the franchise. After trading for Russell Wilson, the Broncos were short on draft capital and needed to hit on their late-round draft picks.

A big reason for this has been the elite play of Broncos' left tackle Garett Bolles, who's made a strong early case for the NFL's maiden Protector of the Year award. However, as great as Bolles has been, Broncos' right tackle Mike McGlinchey may not be getting the recognition he deserves for the unit's exceedingly low sack numbers.

With the second half fast approaching, we're looking at takeaways and observations from the first 30 minutes of action.

The Denver Broncos swagger into London after pulling off a remarkable comeback against the Philadelphia Eagles