There will likely be no investigation into the Miami Heat as grumblings continue, most vocally by Dallas Mavericks owner Mark Cuban, over their free agency signings of LeBron James and Chris Bosh... From Marc Stein of ESPN.com: The Cleveland Cavaliers have no plans to push for an NBA probe into the circumstances that led to LeBron James joining Team USA colleagues Dwyane Wade and Chris Bosh in Miami, according to sources with knowledge of the team's thinking. NBA commissioner David Stern said Sunday that the league would investigate the Heat's signings of James and Bosh for any illegal negotiating or planning before free agency officially started if the Cavaliers or Toronto Raptors make that request. Reached Sunday by ESPN.com, Stern said: "Whenever a team lodges a tampering charge, it is investigated." The Cavaliers declined official comment Sunday, but one source briefed on Cleveland's intentions told ESPN.com that -- in the wake of owner Dan Gilbert's vitriolic open letter to Cavs fans that slammed James for leaving his home-state team -- the organization wants to try to keep the focus from here on its post-James future as much as possible. Toronto likewise declined comment, but one source with knowledge of the Raptors' thinking indicated that they will not press for an inquiry, either, preferring to let league officials decide if any sanctions are warranted with regard to recent acknowledgements from the three players that they have been talking about teaming up for some time. Stern also declined further comment but is expected to expound on the subject Monday night when he is scheduled to meet with reporters in Las Vegas following an owners meeting devoted to the league's ongoing labor negotiations with the NBA Players Association. Although labor matters were initially expected to dominate the agenda, Dallas Mavericks owner Mark Cuban said Friday that he intends to push for renewed discussion about the league's tampering rules and how they are enforced. Concerns about this issue have been mounting since an ESPN.com report in late June that James, Wade and Bosh met face-to-face before free agency to discuss their plans. Yet the league's general position has been that players are not subject to the same tampering restrictions as teams except for "the most egregious cases," when it can be proven that a player was operating as a direct extension of team management. Miami's counter to any tampering claims figures to center on the premise that James, Wade and Bosh have openly dreamt of playing together at some level since the Beijing Olympics in 2008 and that the Heat turned out to be the only team in the league in the long-anticipated summer of LeBron that had the requisite salary-cap space to sign all three players. The Heat will also undoubtedly point to the fact the Cavaliers and Raptors -- to ensure that neither team lost its franchise player without compensation -- just willingly completed sign-and-trade deals with Miami for James and Bosh. A comment made by Bosh at a welcoming rally Friday night in Miami has only fueled accusations that the three stars began plotting their joint move to South Florida well before they were technically allowed to. Bosh initially told the assembled crowd that the trio had been talking about landing with the same team for "months" before catching himself and amending that statement to "days."