If Baltimore ever does add an outdoor pro soccer team, the club might make their home a couple of miles south of downtown. The state’s Department of Commerce recently requested the Maryland Stadium Authority study two city-owned sites — Carroll Park and Swann Park — for a potential stadium that would hold between 7,500 and 10,000 spectators and host an MLS Next Pro team, a men’s minor league club that would feed to MLS side D.C. United.