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.

The Lakers’ attempt to land Mark Williams fell apart after a failed physical, leaving both teams scrambling. Now, the Hornets are pushing back, and the NBA could get involved.

The Los Angeles Lakers rescinded their trade to acquire Mark Williams from Charlotte because the center failed his physical, a person with knowledge of the circumstances told The Associated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