The Spurs have been active early in free agency as they look to bolster their roster and make up for the possible loss of Tiago Splitter.

Splitter will reportedly command a three-year, $25 million deal, according to Adrian Wojnarowski of Yahoo! Sports.

The Portland Trail Blazers, Utah Jazz and Atlanta Hawks are all in need of a young center and have shown interest in Splitter.

Wojnarowski reports the Spurs will be in a good position to match an offer sheet and keep Splitter because they will rid themselves of Stephen Jackson's salary and Manu Ginobili is expected to re-sign with San Antonio for much less. 

If the Spurs lose Splitter, a possible replacement is free agent center Greg Oden.

Yahoo! Sports reports the former No. 1 draft pick was receiving interest from up to eight teams.

But reported that Oden is likely to choose from among five teams: the Spurs, Heat, Cavaliers, Celtics and Grizzlies.

Oden has not played in an NBA game since December 2009 because of chronic knee injuries.

Other reports have the Spurs linked to Minnesota forward Andrei Kirilenko.'s Marc Stein reports Kirilenko is expected to opt out of his deal with the Timberwolves to hit the open market later this month.

Stein says the Spurs have Kirilenko "in their sights," but if Manu, Tiago and Gary Neal all return, affording Kirilenko could be difficult unless he takes a lesser salary to play for a contender.

There were also reports circulating the Spurs have shown interest in Bucks free agent guard Monta Ellis.

CBS Sports reported the Spurs contacted Ellis in the early hours of free agency. Ellis would provide backcourt depth and immediate perimeter scoring.

Ellis was also reportedly contacted by Chicago, Phoenix, Denver and New York.