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 Los Angeles Lakers are signing seven-foot Alex Len to the team after the Lakers' failed trade for center Mark Williams, ESPN's Shams Charania reported. Len originally was going to sign with the Indiana Pacers before the Lakers showed interest.

Len was waived by the Wizards after a deadline trade and it initially seemed like he would be joining the Pacers