ABN Amro’s sale of its U.S. arm LaSalle Bank to Bank of America was lawful, the Dutch Supreme Court ruled Friday — overturning a lower court’s move blocking the proposed $21 billion sale.

It was not immediately clear how the ruling would affect the broader fight between Barclays PLC and a consortium led by Royal Bank of Scotland PLC over competing bids for all of ABN Amro Holding NV.