It's incredibly rare to score a touchdown on the first possession of the game.

Williams' TD was the first touchdown on the Chargers' first offensive play following a kickoff since Nov. 18, 2001 against the Oakland Raiders. Curtis Conway found the end zone on that day with a 67-yard touchdown run on a reverse. The Bolts also scored on their first play from scrimmage on Sept. 9, 2013 when Rivers hit Ryan Mathews in the end zone following an interception.

Now, it's one thing to draw up a play you are confident in, but another to execute it to perfection.

Thus, it was still on the entire offense to deliver, and they did exactly that.

The offensive line held strong, giving Rivers a ton of time in the pocket. Number 17 rewarded their effort with a perfect rainbow to Williams, and the wideout did the rest as he raced 75 yards to the house.

"We believed it had a good chance, just again from the preparation part," noted Rivers. "We thought we might have a chance to get a big chunk on that first play, and it just so happened they played the defense we were hoping for. Tyrell did a nice job of going and getting in the end zone."