NEW YORK, Sept. 17 (UPI) -- Jason Giambi's RBI double in the seventh inning led the New York Yankees past Boston, 7-5, in the nightcap of a day/night doubleheader Saturday.
The Red Sox won the opener, 5-2.
The victory in the nightcap reduced the Yankees' magic number to four, for clinching the AL East.
Yankees starter Randy Johnson went 5 2/3 innings, allowing five runs on eight hits. Scott Proctor (6-4) picked up the win with two innings of scoreless relief, and Kyle Farnsworth pitched a scoreless ninth for his fifth save.