Jason Collins isn’t being added to the Knicks roster. And perhaps nobody is. Coach Mike Woodson had said he would sit down with president and general manager Steve Mills and assistant GM Allan Houston on Thursday to discuss a list of available free-agent big men, but sources indicated the Knicks likely will stand pat and see how they fare in the short- term minus Tyson Chandler. If things become a disaster, the Knicks will seriously consider 6-foot-8 power forward Ike Diogu, who had a solid training camp with the Knicks before getting released. The Nigerian native out of Buffalo rebounded ferociously and showed a consistent mid-range jumper. After cutting him, Woodson said he wanted more size. According to a source, the Knicks have spoken to Collins’ representatives. Collins would make $1.4 million under the veteran’s minimum. Knicks owner James Dolan doesn’t want to spend the money as he has 15 guaranteed contracts and the team plans to re-sign rehabbing Jeremy Tyler in December. Woodson said during preseason Collins’ “name came up’’ over the summer. Collins, who became the first non-retired professional athlete in a team sport to openly admit he was gay, wasn’t invited to a training camp amid speculation teams didn’t want to deal with all the potential media distractions. “I don’t know what he’s done,’’ Woodson said when asked about the former Net. “It’s hard for me to comment on Jason or any big until I sit and talk with Steve and Allan to see who’s out there. We have a list of some bigs.” Collins, who played at Stanford, is training diligently in Los Angeles, aiming to join a roster that needs to plug an injury hole. Chandler suffered a broken fibula and the Knicks, already thin in the frontcourt, could use another natural center pronto. Another candidate down the road could be 7-footer Earl Barron, whom the Knicks had several conversations with during the summer before ultimately inviting the younger Cole Aldrich to camp. Barron finished last season on the roster after grabbing 19 rebounds in his lone game.