Only 10 days before the NBA trade deadline, Zach LaVine is no closer to returning to the court for the Chicago Bulls. LaVine has not returned to practice as he continues to struggle with a right ankle sprain. He was unable to do anything besides receive treatment during the team’s three-game West Coast trip last week. Coach Billy Donovan said Thursday that LaVine would need at least one more week of rest before the Bulls medical team can reevaluate him. That would mark two full weeks without any exercise — and would make it improbable that LaVine would be able to return by the Feb. 6 home game…