The Orioles officially traded first baseman Derrek Lee and a small amount of cash to the Pittsburgh Pirates for Single-A first baseman Aaron Baker on Saturday night.Lee, 35, became expendable when the Orioles acquired first baseman Chris Davis and pitcher Tommy Hunter from the Texas Rangers for Koji Uehara and $2 million.Lee was pulled in the eighth inning of the first game of Saturday's doubleheader and sat out the second game. The trade was officially announced about an hour the second game ended."How do I feel about it? It's the business of baseball," said Lee, who hit .246 with 12 homers and 41 RBIs in 85 games for the Orioles.He signed a one-year $7.25 million deal with the Orioles this offseason."I knew coming into the year there was a pretty good chance I wasn't going to finish it here," Lee said. "So, I understood all of it."He'll now be in the middle of a pennant race. The Pirates (54-51) are in third place in the National League Central, 3 ½ games out of first."Yeah they are playing good," Lee said. "They turned it around so good for them. I'm still playing baseball, so that's always a good thing,"Overall, Lee said he enjoyed his time in Baltimore and with Buck Showalter and Andy MacPhail."Ballpark is beautiful. We didn't play as well as we wanted to. I didn't play as well as I wanted to," he said "But I enjoyed my time."