Gilbert Arenas winced while he walked across the locker room with a bit of a hitch in his step.His surgically repaired left knee was just one of the many things bothering the All-Star guard after the Washington Wizards‘ 94-82 to Orlando on Saturday night, a list that included Arenas’ own poor shooting and his team’s first 0-3 start since 1992.”It’s stiff,” Arenas said after the knee slowed him on a 10-point night. “It feels like a 5-pound weight is on it.”He said there’s a buildup of fluid in the knee, and he might get it drained before the Wizards play next, at New Jersey on Thursday night. Washington figures to use that time off to try to get its offense going, too.Washington led 67-64 entering the fourth quarter of its home opener but shot 5-for-25 the rest of the way.Hedo Turkoglu, meanwhile, scored 13 of his 25 points in the final period — including one stretch of nine straight Magic points — to help the visitors improve to 2-1.