Last night Club America stormed into RFK Stadium intent on claiming a SuperLiga result. Their boisterous contingent of supporters easily outnumbered United fans among the 18,604 in attendance. An early goal from Rod Dyachenko and a team-wide clinic of possession soccer stifled the C.A. attack as well as its supporters. Coach Tom Soehn knew that an early goal would be important in taking control of the game, and his team’s focus on energy and…