The Los Angeles Lakers rescinded their trade to acquire Mark Williams from Charlotte because the center failed his physical, a person with knowledge of the circumstances told The Associated Press on Saturday night.

The Charlotte Hornets have been in contact with the NBA as they explore options to dispute the Los Angeles Lakers' failed physical assessment of Mark Williams, sources tell ESPN. The Williams/Dalton Knecht trade was nixed Saturday, and now Hornets weigh avenues to challenge.

On Monday, an already fuzzy would-be NBA trade got even murkier. Days ago, the Los Angeles Lakers and Charlotte Hornets agreed to a deal surrounding rookie Dalton Knecht and third-year center Mark Williams,