the Nationals are World Series champs, so shop at Steiner Sports to find the best autographed Nationals World Series memorabilia and signed World Series champions collectibles. The Washington Nationals are one of the best and most consistent products in the National League year in and year out. They are now led by one of the best pitching staffs in the entire league as well as young stud position players as well. Max Scherzer, Stephen Strasburg, Juan Soto, and Trea Turner look to bring the Nationals their first title after showing that this core group of guys is beating any team thus far this season. Shop our authentic selection of autographed Washington Nationals collectibles & memorabilia including signed baseballs, photos, jerseys, bats and more. Certified Authentic.