Lakers forward Trevor Ariza suffered a fracture of the fourth metatarsal in his right foot yesterday at practice, it was announced by the team.
 
 After an examination this morning by Dr. Ken Jung, a foot specialist with the Kerlan- Jobe Orthopaedic Group, it is estimated that Ariza will be out approximately eight weeks.
 
 Ariza, acquired by the Lakers on November 20 in a trade with the Orlando Magic, is averaging 5.5 points, 3.1 rebounds and 1.3 assists in 15.6 minutes.