PORTLAND, Ore. — Trail Blazers forward Zach Collins suffered a right ankle injury during a workout earlier this month, according to NBC Sports Northwest's Dwight Jaynes.

Collins, who is expected to replace Al-Farouq Aminu as Portland's starting power forward this season, suffered a Grade 2 sprain and a torn ligament, according to Jaynes.

The third-year big man is on crutches and a walking boot, Jaynes reports, but he's expected to be ready by training camp.

Collins averaged 6.6 points, 4.2 rebounds and 0.9 blocks in 17.6 minutes per game last season.

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Jared Cowley writes about the Trail Blazers and other topics for KGW.com. He's also the co-host of the 3-on-3 Blazers podcast (listen here). You can reach him on Twitter @jaredcowley