08:07 AM ET 01.30 | Former No. 1 pick Greg Oden may yet have options when he's ready to return. The Cleveland Cavaliers and the Miami Heat have emerged as the leaders to land [Oden]. The 7-foot Oden, who hasn't played since Dec. 5, 2009 due to multiple knee injuries, is hoping to take a visit down to Miami to meet with Pat Riley and the Heat in the next week, a source told CBSSports.com. Miami would likely offer a deal for minimum salary while the Cavs could pay up to nearly $4 million. The Boston Celtics are another team that has expressed interest, but the source said that Oden is leaning towards making a comeback with either Cleveland or Miami. Oden was the top pick in the 2007 NBA Draft, but has had multiple knee surgeries.