NEW YORK (AP) — The NBA Board of Governors approved the sale of controlling interest in the Portland Trail Blazers from Paul Allen’s estate to a group led by investor Tom Dundon on Monday. The league said in a statement it expects the deal to close this week. ESPN previously reported it was for $4 billion. In March, the Boston Celtics sold for $6.1 billion . Dundon’s group includes Portland-based Sheel Tyle, the co-founder of investment firm Collective Global; Marc Zahr, co-president of Blue