Carmelo Anthony and Jimmy Butler are among the latest players who have committed to playing for the United States at the Summer Olympics at Rio de Janeiro.Anthony, the New York Knicks forward, will be on the squad for a fourth time if he makes the final 12-man roster. Butler, a guard for the Chicago Bulls, would be playing in his first Olympics.Also giving commitments to play are Toronto Raptors point guard Kyle Lowry and Los Angeles Clippers center DeAndre Jordan.Cleveland forward LeBron James is expected to make his decision this weekend. USA Basketball is expected to announce the roster next week.Also, Portland point guard Damian Lillard (foot) won't be part of the team due to injury. Anthony had considered not participating due to concerns over the Zika virus, which has created major health risks in Brazil.Jordan reportedly is in the mix for a roster spot because Detroit center Andre Drummond has decided not to play.Other players who have committed to playing include Oklahoma City forward Kevin Durant, Indiana forward Paul George, Sacramento center DeMarcus Cousins and Golden State forward Draymond Green.Among the players who haven't reached a decision yet are Cleveland Cavaliers point guard Kyrie Irving and Golden State shooting guard Klay Thompson.The team's training camp will run July 18-21 in Las Vegas. Duke coach Mike Krzyzewski is the coach and Olympic basketball competition will be held Aug. 6-21.Players who previously withdrew include Golden State point guard Stephen Curry, Oklahoma City Thunder point guard Russell Westbrook and Houston Rockets guard James Harden. Out for health reasons are LaMarcus Aldridge (San Antonio Spurs), Anthony Davis (New Orleans Pelicans), Blake Griffin (Los Angeles Clippers), Chris Paul (Clippers) and John Wall (Washington Wizards).