Rios in the 2017 NFL season.
|No. 39 – Winnipeg Blue Bombers|
|Born:||October 25, 1994|
|Height:||6 ft 0 in (1.83 m)|
|Weight:||200 lb (91 kg)|
|High school:||Cosumnes Oaks|
|Roster status:||Active Roster|
|Career NFL statistics|
|Ht||Wt||40-yard dash||10-yd split||20-yd split||20-ss||3-cone||Vert jump||Broad||BP|
|5 ft 11 in
|4.45 s||1.63 s||2.62 s||4.22 s||7.25 s||30 in
|10 ft 4 in
|All values from UCLA's Pro Day|
On May 11, 2017, the Denver Broncos signed Rios as an undrafted free agent after he was not selected during the 2017 NFL Draft. On April 30, 2017, the Denver Broncos signed Rios to a three-year, $1.66 million contract.
On September 2, 2017, the Denver Broncos waived Rios as part of their final roster cuts and he was signed to the practice squad the next day. He was promoted to the active roster on December 1, 2017.
On September 1, 2018, Rios was placed on injured reserve.
In 2013, Rios was diagnosed with an extremely rare condition known as Aspergillosis. Aspergillosis is defined as an infection caused by fungi of the genus Aspergillus. Though rare, the condition has proved to be fatal nearly every time it has been diagnosed; of the 12 people who had received similar diagnoses, eight of those had died. While in the hospital, Rios requested a room at the Ronald Reagan UCLA Medical Center with a window to oversee his team practice at the UCLA Wasserman Football Center. During his time in the hospital, Rios lost 50 pounds; however, he would recover and return to play for UCLA in 29 games. Rios' near-death experience has been retold on the Pac-12 Network's show "The Drive" and "Monsters Inside Me". Although Rios did not receive an invite to the scouting combine, NFL Draft Scout shows that he posted a 4.45 40-yard dash and put up 18 bench press reps at his pro day, eventually earning a spot in the NFL with the Denver Broncos in 2017. The
- "Marcus Rios, DS #55 CB, UCLA". NFLDraftScout.com. Retrieved February 9, 2018.
- Mason, Andrew (May 13, 2017). "Broncos announce college free-agent signings". DenverBroncos.com. Retrieved December 22, 2017.
- "Spotrac.com: Marcus Rios contract". Spotrac.com. Retrieved February 9, 2018.
- Mason, Andrew (September 2, 2017). "Broncos trim roster at deadline". DenverBroncos.com. Retrieved December 22, 2017.
- DiLalla, Aric (September 4, 2017). "Broncos announce initial practice-squad roster". DenverBroncos.com. Retrieved December 22, 2017.
- DiLalla, Aric (December 1, 2017). "Broncos to sign cornerback Marcus Rios to active roster". DenverBroncos.com. Retrieved December 22, 2017.
- DiLalla, Aric (September 1, 2018). "Broncos trim roster to 53 players". DenverBroncos.com.
- Foster, Chris. "After nearly dying, UCLA's Marcus Rios returns to football field". latimes.com.
- "Broncos undrafted rookie spotlight: CB Marcus Rios". Broncos Wire. June 26, 2017.
- "'The Drive' preview: UCLA football's Marcus Rios survives life-threatening infection to return to gridiron". Pac-12.