NBA trades have the potential to alter the course of history. Some of the biggest trades, especially involving superstars, have the ability to shake up the league. Unfortunately, even trades agreed upon by all parties still don't push through for several reasons. Here are the five biggest canceled NBA trades in history.

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5. Mark Williams ' acquisition by the Lakers

After the Los Angeles Lakers broke headlines for acquiring Luka Doncic in return for Anthony Davis at the 2025 NBA trade deadline, the Purple and Gold were looking for a lob-threat center who could also protect the rim. As a result, Rob Pelinka orchestrated a move for 7-foot center Mark Williams, who was still playing for the Charlotte Hornets.

Williams would've been a shot in the arm for the Lakers

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