ENGLEWOOD, Colo. — John Elway promised at the 2018 NFL Combine that the Broncos were going to "explore all options" at the quarterback position.

He and the Broncos did just that.

Denver locked in on its target, and the Broncos officially announced Wednesday the team had agreed to terms with free-agent quarterback Case Keenum on a two-year contract.

"Case is a great fit for us," Elway said. "He's coming off a tremendous season last year and has obviously been through a lot of situations throughout his entire career. Along with that experience, his leadership and competitiveness are what you look for in a quarterback. Case has fought and battled for everything that he's earned in the NFL, and it's exciting to add someone with that type of mentality to our team."

Keenum just completed the best season of his career, which saw him guide the Minnesota Vikings to an 11-3 record and a berth in the NFC Championship Game.

The 30-year-old product out of Houston turned in career highs in completion percentage, touchdowns and passing yards as he completed 67.6 percent of his passes and threw for 3,547 yards and 22 touchdowns.

The sixth-year pro also compiled a quarterback rating of more than 100.0 in eight of the 15 regular-season games in which he saw action.

Perhaps most importantly, Keenum showed a tremendous aptitude for protecting the football, throwing just seven interceptions all season and avoiding a pick in nine of his 14 starts.

After back-to-back seasons in which the Broncos failed to make the playoffs, that sort of potential at the quarterback position could prove to be the missing piece.

"Case is perfect for our team, both as a player and as a person," Head Coach Vance Joseph said. "He's playing the best football of his career right now and has gotten better with every opportunity he's had. Being around him in Houston, Case is a tremendous person and teammate with strong leadership skills and a terrific work ethic. He'll be great in our locker room, and we're all looking forward to having him as a Bronco."

Keenum, who will be introduced to the media Friday, joins the Broncos after stints with the Vikings, Rams and Texans.

The 6-foot-2, 209-pound quarterback entered the league as an undrafted free agent following a record-setting career at the University of Houston. Keenum remains the FBS' leader in career passing yards, career completions and career passing touchdowns. He also holds FBS records for the most 300-yard passing games in both a season and a career.

Signing Keenum provides the Broncos with plenty of desired flexibility in the upcoming 2018 NFL Draft. With a bona fide Week 1 starter on its roster, Denver can explore all options with the fifth-overall pick.

Keenum currently joins Paxton Lynch, Trevor Siemian and Chad Kelly as the quarterbacks under contract with the Broncos.