Omri Casspi isn't pleased with the negotiating tactics of NBA owners, and has become the latest player to vent his frustration through social media. The Cavaliers swingman used his Twitter account to express his displeasure with the labor talks on Friday night, pushing for union decertification. His locked-out players union is weighing the latest offer from the league after two days of marathon bargaining sessions this week produced no resolution in the 134-day work stoppage. In the spring, NBA Commissioner David Sternsaid 22 of 30 teams were losing money, totaling around $300 million. "If the NBA claim loses of 300mil dollars, why they aren't opening the books to the players and letting us see it?" Casspi wrote. Should players petition for union dissolution their grievance potentially could wind up in federal court. It's an option being strongly considered by disgruntled players after the latest round of talks. "I know that it won't be good for the nba that the court will make them open the books and we all find out that there's big difference.