The Portland Trail Blazers on Monday exercised third-year team options on Zach Collins and Caleb Swanigan, keeping the second-year big men in Rip City for at least two more seasons.

The moves, which will impact next season's roster, guarantee that Collins and Swanigan will be with the Blazers through the 2019-20 season.

Swanigan and Collins have traveled diverging paths as they approach their second NBA season.

Collins, the No. 10 pick of the 2017 NBA Draft whom the Blazers acquired in a draft-night trade, was initially viewed as a long-term project and opened his rookie season at the end of the bench. But he joined the rotation in January and, by the end of the season, emerged as a key part of a playoff team. He averaged 4.4 points and 3.3 rebounds, while shooting 40 percent from the field, in 15.8 minutes over 66 games.

Now, three days before the Blazers open the regular season against the Los Angeles Lakers, Collins is entrenched in the rotation and considered an important piece of the future.

Conversely, Swanigan, the No. 26 overall pick of the 2017 draft, had a superb performance in summer league, strong training camp and opened his rookie season in the rotation. He even started three games in November. But as Collins' stock rose, Swanigan's started to plummet and he went on to spend much of his first season in the NBA G-League.

Swanigan, who averaged 2.3 points and 2.2 rebounds in 27 games as a rookie, is not expected to be a part of the Blazers' rotation when the season opens Thursday.

Through the third-year options, Collins will earn roughly $4.24 million in 2019-20, while Swanigan will make roughly $2.03 million.

Joe Freeman | jfreeman@oregonian.com | 503-294-5183 | @BlazerFreeman