While Greg Oden playfully admonished Kevin Durant for not calling him on Christmas Eve when he arrived to town, the Sonics rookie couldn’t help but to marvel at how much the Trail Blazers‘ top pick had grown since their last meeting. “Man, you’ve gotten big,” Durant said when the two met in the Rose Garden hallways Tuesday. Dressed in a ruby red blazer, dress shirt and blue jeans, it was easy to see how the 7-foot, 250-pound center has added weight during his seasonlong recovery from microfracture surgery on his right knee. The Blazers brass were concerned when Oden ballooned from 252 pounds to 282 several weeks ago and told him he doesn’t need to add any more weight. Oden declined to say specifically how much he weighs, but many around the team believe he’s about 290 pounds.