NBA playoffs preview: should we expect a Cavaliers-Warriors rematch. The Celtics are the sixth franchise to grab the No1 seed in the East in the past six seasons – Chicago did in 2012, followed by Miami, Indiana, Atlanta, Cleveland and now Boston. Well, that’s going to be the Thunder’s postseason and, honestly, it wouldn’t be too shocking to see Westbrook pull it off. ginning of this year, in which he said he would have been happy if his opponent that day, Rafa Nadal, had won.