Bill Ladson of MLB.com reports that the Nationals have expressed interest in free agent Greg Dobbs. Dobbs, 33, batted .275/.311/.389 with eight home runs, 49 RBI and a .701 OPS over 439 plate appearances with the Marlins this past season. He was also 10-for-27 (.370) as a pinch-hitter. The Nationals are looking to strengthen their bench this offseason and have also expressed interest in free agents Mark DeRosa and Willie Harris.