The Denver Broncos are expected to exercise the $8.526 million, fifth-year option on cornerback Bradley Roby, a high-ranking football source told 9NEWS.

The thinking is this: Roby is a good player and Broncos’ general manager John Elway wants to keep his good players.

Within the NFL’s collective bargaining agreement is a provision that gives teams a fifth-year contract option on their first-round draft picks. Roby was the Broncos’ first-round draft selection, No. 31 overall, in 2014.

Now in his fourth season, Roby is scheduled to make $1,368,072 this year. His $8.562 million fifth-year option for the 2018 season is expected to be exercised closer to the deadline date of May 3.

Should the Broncos enact the option year as expected on Roby’s contract, his $8.562 million salary would be guaranteed against injury only.

While $8.562 million is pricey for a No. 3 cornerback, Roby is considered one of the best No. 3 corners in the league as the Broncos have arguably the best starting tandem in Aqib Talib and Chris Harris Jr.

A.J. Bouye was the Houston Texans’ No. 3 cornerback for most of his four seasons with the team before he became a free agent last month and received a $13.5 million-a-year deal from Jacksonville.

Roby has demonstrated both durability and big-play ability in his first three seasons. He has played in all 52 games, counting the postseason, and has scored three defensive touchdowns – two off interception returns and another off a fumble return.