Portland Trail Blazers shooting guard CJ McCollum will miss at least the next four weeks after additional testing revealed a small fracture in his left foot and a midfoot sprain, the team announced Monday night.

McCollum left the Blazers' 112-106 victory over the Atlanta Hawks on Saturday at halftime with what the team called a left foot sprain. It was unclear when he was hurt, but it appeared the Hawks' Clint Capela stepped on McCollum's foot following a layup in the opening quarter.

After that game, Blazers coach Terry Stotts said X-rays ruled out a more serious injury.

Earlier Monday, Stotts had told reporters that McCollum's sprained left foot would be reevaluated in a week. But the Blazers, in a statement late Monday night, said further imaging showed "a small hairline fracture to the lateral cuneiform" in McCollum's left foot.

The team said McCollum will wear a walking boot and be reevaluated in four weeks.

McCollum is averaging a career-best 26.7 points and 5.0 assists in 13 games this season.