Ryan Zimmerman and the Washington Nationals are closing in on a new long-term contract and expect to finalize their agreement Sunday. The two sides talked late into the night, making enough progress for Zimmerman to extend a Saturday deadline that coincided with the start of full-squad workouts. The 27-year-old third baseman wants to get a deal done or shelve the talks for now so his contract situation won't be a distraction to the team, which has high hopes in the NL East this season.