The Boston Celtics may begin training camp without its starting backcourt from last season.

Four-time All-Star point guard Rajon Rondo is still on the mend from a torn right ACL injury that was surgically repaired in February and his backcourt mate Avery Bradley is also questionable due to the recent death of his mother.

"He's going through a very difficult time" Danny Ainge Boston's president of basketball operations told "His mother passed away and they were very close and he's expecting a baby any day. He's got a lot going on."

Bradley's mother Alicia "Lisa" Jones 46 passed away on September 10.

When asked if Bradley might be late to training camp Ainge responded "I don't know. We're just taking it day-by-day right now."

Bradley who was named to the NBA's All-Defensive second team last season was a starter in all 50 games he played in for the Celtics.

Aware that he needed to be more durable for this season the 6-foot-2 guard spent the past couple of months in Boston working out two and sometimes three times a day with the result being him adding about 15 pounds of muscle.

"Sometimes I was doing a little too much" Bradley said earlier this summer. "The two-a-days I'm doing now are perfect. They're preparing me for the season and I'm working out with the coaches so I'm getting familiar with them and my new teammates."