By AP/KWMU
St. Louis, MO – The Cardinals now face a must-win situation in the World Series.
The best-of-seven series shifted to Busch Stadium on Tuesday night, but the Boston Red Sox continued their winning ways with a 4-1 victory.
Boston jumped off to a lead on a first-inning homer by Manny Ramirez. Red Sox Pitcher Pedro Martinez gave up just three hits over seven innings.
The Cardinals didn't score until the bottom of the ninth, when Larry Walker hit a solo homer off closer Keith Foulke.
The heart of the Cardinals' lineup - Albert Pujols, Scott Rolen and Jim Edmonds have gone 5-for-33 with just 1 RBI in the first three World Series games.
If the Red Sox win game four tonight (Wednesday), they'll have their first World Series championship since 1918.
Derek Lowe will face Cardinals pitcher Jason Marquis.
To hear a report by NPR's Tom Goldman, as aired on Morning Edition, click here.