With the signing of undrafted free agent La'El Collins, the Dallas Cowboys now have, in theory, three first-rounders from the 2015 NFL Draft.

Collins was once a surefire first-round pick for weeks leading up to the draft, but then an odd situation occurred. His pregnant ex-girlfriend was shot and killed in Baton Rouge and he was linked to the case. However, Collins was never named a suspect or person of interest in the investigation, but team's still decided to enter "wait and see" mode.

So, Collins went undrafted and almost every NFL team came knocking.

To get an estimate of how good Collins is, NFL.com gave him a 6.19 rating — equating to a starter in the NFL. The highest-graded mock drafter, Dane Brugler, had Collins going No. 19 overall to the Cleveland Browns in his second-to-last mock draft

Aside from the countless mock drafts that projected Collins to go in the first round, several draft experts gave Collins a first-round ranking. Of course, the Cowboys also selected Byron Jones with the 27th overall pick and a first-round talent in defensive end Randy Gregory with the 60th overall selection.

Here's where these players came in on major rankings and how the Cowboys now have three first-rounders.

CBSSports.com's top prospects

Jones: 20

Gregory: 16

Collins: 18

Scouts Inc.'s Top 32

Jones: N/A

Gregory: 18

Collins: 22

NFL media analyst Daniel Jeremiah's Top 50

Jones: 35

Gregory: 11

Collins: 23

Cowboys analyst/scout Bryan Broaddus's Top 50

Jones: 12

Gregory: 29

Collins: 17

NFL draft insider Troy Pauline's Top 225

Jones: 24

Gregory: 17

Collins: 18