The NBA opening night is still two months away, but teams are close to determining the players for their training camp. Among available bigs are Ryan Hollins and Glen Davis. Also, the Golden State Warriors and Harrison Barnes are talking about a possible contract extension.

Three Teams Interested with Ryan Hollins

Free agent center, Ryan Hollins, is getting some interests from teams including two former teams and an eastern conference contender. In a report by Marc J. Spears on Twitter, he said that according to a source, the Sacramento Kings, Los Angeles Clippers and Washington Wizards are interested in the service of the 7'0'' center.

The 30-year-old was with the Sacramento Kings last season but only played in limited minutes behind DeMarcus Cousins. The addition of Kosta Koufos and Willie Cauley-Stein would limit his minutes more, but the Kings are still interested in signing him, as per a report from NBC Sports.

He played two seasons ago with the Los Angeles Clippers, receiving limited time too. The Clippers are interested in the big man if they can't re-sign Glen Davis to a new contract. The Washington Wizards lost Kevin Seraphin to the New York Knicks and are looking at Hollins as a possible replacement.

Hollins was drafted 50th overall by the Charlotte Hornets in 2006. He has a career average of 3.7 points, 2.2 rebounds and 0.5 blocks per game in eight seasons.

China, Europe and Dallas Interested in Glen Davis

The arrivals of Josh Smith, Cole Aldrich and Paul Pierce in the Clippers have increased the chances of Glen Davis not signing with the team. However, according to Brad Turner on Twitter, Clippers coach Doc Rivers has talked with Davis' representatives but no deal was done.

In a different tweet by Turner, Davis also has some interest from the Mavericks, China and Europe. NBC Sports adds that "Big Baby" is interested in playing overseas if no NBA deal comes to him.

Golden State Warriors and Harrison Barnes Talking Contract Extensions

According to ESPN, the Golden State Warriors have until Nov. 2 to sign Harrison Barnes to an extension, which is seen as the best move rather than after the season when he becomes a restricted free agent. Mercury News states that it is better that the Warriors sign him now than let him hit free agency next summer.

There are several reasons behind to do this. Barnes is a good young player that can be used if the Warriors go after Kevin Durant next season. They can make a sign-and-trade deal with the Thunder and Barnes can be the centerpiece of young players dealt for the former MVP.