As we move into the second week of Broncos training camp, multiple position spots are up for grabs with no obvious front runners at this point in time. The most intriguing position battle to look out for is the running backs.

After signing a four year deal worth $18 million in the offseason, C.J. Anderson is expected to carry the majority of the load, but the No. two spot is up in the air. With Ronnie Hillman, Kapri Bibbs, Devontae Booker and Juwan Thompson all in the mix, the Broncos backfield is filled capable young backs.

Along with Anderson, the only true lock to make the team would be Booker, who the Broncos selected in the fourth round of the draft this year. Booker is coming off of a serious knee injury, but the young running back was one of the most exciting collegiate players in the country when healthy.

Booker is fantastic through the tackles, showing both lateral speed and vision. Obviously transitioning to the next level will take some time, but do not be surprised if Booker works his way into a regular role in the offense as a rookie.

Hillman played a limited role over the first three seasons of his career but had a breakout season in 2015, filling in at times for an injured Anderson. Arguably saving the Broncos running game when the passing offense was anemic in 2015, Hillman’s 863 rushing yards was a career high.

Hillman also re-signed with the Broncos in the offseason but in no way is he a lock for the No. two spot. Hillman’s speed makes him extremely tough to bring down in the open field and provides the Broncos offense a nice change of pace. However, his lack of size makes him not as effective between the tackles and limits what packages he can play in.

Kapri Bibbs has been a career practice squad player so far, but the young running back out of Colorado State has been turning some heads this summer and just may earn himself a roster spot this season.

Coming into the league, Bibbs struggled mightily with pass protection and needed to work on his breakaway speed. Now heading into his third NFL season, Bibbs has been putting in work and the Denver coaching staff, as well as the media are taking notice.

Kapri Bibbs has picked up where he left off from his strong work in OTAs. He's reading the holes and cutting back beautifully today. — Andrew Mason (@MaseDenver) July 28, 2016

Both Bibbs and Hillman will be participating in special teams throughout camp and preseason and will have to everything in their ability to prove their value to the team. It will be really interesting to see what happens between these two, especially if Bibbs has a breakout preseason.

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Thompson won Broncos fans over in the 2014 preseason, but his career so far has been fairly disappointing. A terrific downhill runner with excellent strength, Thompson is a bruising back with decent speed.

Injuries have held Thompson back, but his potential is still yet to be determined. Thompson’s chances of making the roster improve dramatically if rookie fullback Andy Janovich does not make the team, but the former Duke Blue Devil will be in the conversation either way.

As of now, I would say Thompson is on the outside looking in and will have to once again establish himself as a legitimate back if he expects to make the team. Hillman was impressive at times last season, but I feel we may have seen the best that Hillman can be. His lack of size is not ideal and ultimately Booker and Bibbs are both more versatile options.

By the time September rolls around, I fully expect Bibbs to have established himself as the Broncos No. 2 running back. Bibbs runs hard and is freakishly strong. After two seasons developing on the practice squad, 2016 will be the year Bibbs breaks out.

Booker will certainly receive some playing time this season, but expect Gary Kubiak to ease him in lightly as he learns the offense and continues to rehab his knee.