Jalen Brunson’s injury — he suffered a Grade 1 right ankle sprain during a 124-107 loss to the Magic on Wednesday night at Madison Square Garden — puts the team’s backup point guard weakness under the spotlight. The Knicks had planned on Malcolm Brogdon filling that void, but he suddenly retired before the season started.

Grade 1 is the lowest level of ankle sprain. Brunson could be back as soon as next week, or be out a couple of weeks.

By the time New York’s offense woke up at halftime, it was too late and its five-game winning streak was snapped Wednesday by the Magic, 124-107, handing the Knicks (7-3) their first defeat at home. Jalen Brunson dropped 31 points but was among the frustrated Knicks,