Two teams that began the week on a tear aim for a return to form on Wednesday as the Dallas Mavericks visit the Portland Trail Blazers. Dallas was outscored 33-14 in the fourth quarter of a 130-92 loss to the Golden State Warriors on Tuesday in San Francisco, while Portland fell 109-107 to the visiting Minnesota Timberwolves on Tuesday. Both teams entered their latest game playing well, with Dallas having won five of its past six and Portland having prevailed in six of eight.