PHILADELPHIA --  76ers forward Paul George has a bone bruise in his left knee but did not suffer any structural damage and will be reevaluated in approximately one week, the team announced Tuesday.  A nine-time All-Star, George was injured when his knee buckled on a defensive play in the second quarter of Monday's game against Atlanta. He was ruled out of the game with a hyperextended knee.  "Everything checks out OK," coach Nick Nurse told reporters Tuesday at the team's New Jersey complex. George attended Tuesday's practice. Even before the injury, George was not scheduled to play in Wednesday's preseason game against Brooklyn.  "I felt that it hyperextended, and immediately it was, all right, I need to get taken out and [looked at], but if you ask me, I'm not too concerned about it," George told The Philadelphia Inquirer after Monday's game.  The Sixers have been cautious with their star players and shut down center Joel Embiid on Sunday for...