Nats, New Ballpark Beckon O's Fans To D.C. WASHINGTON, D.C. (wypr) - Today marks the final step in Baltimore and Washington truly becoming a two-team baseball market. The Orioles travel down the road to play the Nationals in the opener of the first inter-league series between the neighboring franchises, since the Nationals' new ballpark opened this spring. David Steele of the Baltimore Sun visited the Nation's capital earlier this week and filed this report for WYPR. © Copyright 2009, wypr