The Kansas City Chiefs have placed second-year quarterback Tyler Bray on injured reserve.

All throughout training camp, the quarterback position was a top storyline.

Not because of any questions as to whom the starter would be when the regular season began, although that's normally the focus of quarterback battles.

There's no question there—Alex Smith is the guy.

But behind him, things seemed a bit murky. Five-year NFL veteran Chase Daniel looked to have a firm grasp on the backup job— as he held last year.

But Bray, a second-year quarterback, and rookie Aaron Murray were in a battle for that No. 3 spot. It seemed unlikely that the Chiefs would carry four quarterbacks— something coach Andy Reid said he hasn't done before.

Bray has routinely been praised for his development between last year and now, but keeping him would open the door for the Chiefs to release Murray, a fifth-round rookie coming off ACL surgery.

Letting either Murray or Bray try and pass through waivers by releasing one of them in hopes of signing them to the practice squad was a risk.

During the Chiefs 34-14 loss to the Green Bay Packers last Thursday, Bray suffered injuries to both his knee and ankle.

Reid spoke of Bray after the game.

"He obviously has a big arm," Reid said. "I think if you took one player and said, 'Who's improved and changed themselves physically and mentally since last year the most?' you would have to put Tyler in that mix.

"From where he was to where he is now, there's a big difference."

The Chiefs signed Bray as an undrafted free agent out of Tennessee back on May 1, 2013.

In his career at Tennessee, Bray threw for over 7,000 yards with 68 touchdowns and just 28 interceptions.

Bray finished the preseason 19 of 32 for 238 yards with two touchdowns and two interceptions.

Rookie Aaron Murray, who was already slated to enter the game at some point, got an early start against the Packers after Bray's injury.

The Kansas City Chiefs selected Murray out of the University of Georgia with their fifth-round pick (No. 163 overall).

With the Bulldogs, Murray had one of the most storied careers in SEC history. He set SEC records in terms of completions (921), yards passing (13,166), touchdown passes (121) and total offense (13,562).

Murray battled back from an ACL injury suffered at the end of last season to be ready for training camp and the preseason.

Throughout training camp, Murray leaned on veteran leadership to help him develop as a quarterback.

"I'm constantly asking Alex and Chase questions because those guys have been in the league a long time," Murray said. "They've seen a lot, been against a lot of defenses, very knowledgeable. So just asking them all the time, 'Why did you throw it here? What are you looking at? What do you think that defense was? What should I have done?'

"So I just continue to ask questions and just pick their brains a little bit."

During the preseason, Murray finished 10 of 20 for 120 yards with one touchdown and one interception.

With Bray heading to IR, Murray looks to be the No. 3 quarterback right now for the Chiefs, which answers one of the biggest questions of the offseason.