The Pirates beat the Cubs, 10 – 8. Freddy Sanchez goes 6 for 6 with 4 runs, 3 RBI, a double and a homer, the first Pirate in 19 years to have six hits in a game. Jason Jaramilloand Andy LaRoche each go 3 for 5. The Bucs, fresh off an interleague series with the White Sox, become the first team in major league history to play consecutive series against the Cubs and White Sox in Chicago.

On May 25, 2009 — The Pirates beat the Cubs, 10 – 8. Freddy Sanchez goes 6 for 6 with 4 runs, 3 RBI, a double and a homer, the first Pirate in 19 years to have six hits in a game. Jason Jaramilloand Andy LaRoche each go 3 for 5. The Bucs, fresh off an interleague series with the White Sox, become the first team in major league history to play consecutive series against the Cubs and White Sox in Chicago.

Source:
Baseball Reference May 25