FOX Sports' Jon Paul Morosi reports that the Diamondbacks and Paul Goldschmidt are engaged in ongoing dialogue about a multi-year contract extension. The Diamondbacks approached Goldschmidt about an extension during the offseason, but he preferred to wait. However, he has apparently had a change of heart in recent weeks. The 25-year-old isn't arbitration-eligible until after 2014 and is under team control through 2017, but he has quickly established himself as one of the top young first basemen in the National League.