NBA ROUNDUP Dallas suffers a huge blow in playoff race

Miami was desperate. So was Dallas. Jimmy Butler and the Heat had just enough to help their playoff position – while dealing the Mavericks a big blow. Butler had 35 points and 12 assists, Cody Zeller added 20 points and the Heat held off the Mavericks 129-122 on Saturday night to snap a three-game losing streak. Max Strus and Kevin Love each scored 18 and Tyler Herro added 15 for the Heat. Miami won despite allowing Dallas to shoot a season-best 61%. ‘I wouldn’t necessarily have drawn it up this way,’ Heat coach Erik Spoelstra said. Luka Doncic was brilliant…