Nationals pitching prospect Stephen Strasburg has continued to impress at the minor league level and ESPN.com's Kevin Goldstein expects to see him in Washington by the beginning of June. The only blemish on Strasburg's record Tuesday was a dropped third strike as he threw five no-hit innings for Double-A Harrisburg. A call up in June would make sense for the Nationals, who are undoubtedly looking to manage his service time.