Transactions BASEBALL Baltimore (AL): Placed 1B David Segui on 15-day disabled list. Colorado (NL): Recalled P Chin-hui Tsao from Colorado Springs (PCL). Oakland (AL): Purchased C Mike Rose from Sacramento (PCL); designated INF Ramon Castro for assignment. San Diego (NL): Recalled OF Freddy Guzman, C Humberto Quintero and P Brian Sweeney from Portland (PCL). Texas (AL): Activated P Juan Dominguez; placed ...