According to an ESPN report, free agent center Greg Oden , who is looking to make a return to the league after sitting out since 2009 with knee problems, is likely to choose from a list of five teams that includes the Celtics . The Spurs, Heat, Cavaliers  and Grizzlies  are the other top candidates, with the Cavaliers and Spurs the favorites, the report indicates.
Oden, the No. 1 overall pick in the 2007 draft out of Ohio State, has not played since Dec. 5, 2009. He had his third microfracture knee surgery in February 2012.
Oden has averaged 9.4 points, 7.3 rebounds and 1.4 blocks in 82 career games with the Trail Blazers.