The Grizzlies will be without forward Darrell Arthur for the remainder of the preseason because of a right partial pectoral tear.

He initially suffered the injury the week before training camp began.

"It sets him back from a conditioning and learning perspective," Grizzlies coach Lionel Hollins told the Memphis Commercial Appeal. "Those other guys will be moving into his spot as we go forward. When you get hurt during the season, it's always a problem trying to catch up when you come back."

There is no timetable for Arthur's return.