Walker amassed 15 points (5-9 FG, 0-2 3Pt, 5-5 FT) and six rebounds over 19 minutes during Monday's 111-98 loss to the Kings.
Walker (ankle) will be available for Wednesday's regular-season opener against the Warriors, Sean Highkin of RoseGardenReport.com reports.
Walker (ankle) didn't play in Friday's 124-86 preseason loss to the Jazz.
Portland general manager Joe Cronin said Monday that Walker (knee) will be ready for training camp, Sean Highkin of RoseGardenReport.com reports.
Walker (knee) is inactive Sunday versus Sacramento.
Walker (knee) is doubtful for Sunday's game against the Kings.
Walker amassed 17 points (6-14 FG, 2-3 3Pt, 3-4 FT), 16 rebounds, one assist and one steal in 36 minutes during Thursday's 100-92 loss to the Warriors.
Walker posted 14 points (4-17 FG, 1-3 3Pt, 5-5 FT), 22 rebounds, two assists and one block in 42 minutes during Wednesday's 89-86 victory over the Hornets.
Walker ended with 18 points (7-15 FG, 2-6 3Pt, 2-3 FT), nine rebounds and five assists across 40 minutes during Monday's 104-103 loss to the Magic.
Walker is in the starting five for Friday's game versus the Heat, Casey Holdahl of the Trail Blazers' official site reports.