Dazzling pitching from rookie Anthony Reyes inspired St Louis Cardinals to a 7-2 win over Detroit Tigers in the opening game of the 102nd World Series.
Reyes was a poor 5-8 with a 5.06 earned run average in the regular season
Reyes, 25, retired 17 Tigers in a row and gave up just four hits and two runs in his eight innings.
The power-hitting of Albert Pujols and Scott Rolen plus sloppy play by Detroit were also key to the win.
Home pitcher Justin Verlander gave up all seven runs despite striking out eight in five innings work.
American League champions Tigers got on the scoreboard first with a run in the opening inning but from then on it was all St Louis.
A homer by Rolen tied the game 1-1 in the second inning.
Detroit skipper Jim Leyland
In the third inning, the Tigers decided to be aggressive and pitch to slugger Pujols with two outs, a man on second and first base open.
Pujols punished the first pitch from Verlander, driving an outside offering into the right-field bleachers for a two-run homer and a 4-1 St Louis lead.
Yadier Molina scored the first run of the frame on a double by Chris Duncan.
"The manager's decision is to either pitch to him or walk him, and obviously he burned us," Detroit skipper Jim Leyland said about Pujols.
"It's my decision. I'll leave it at that. I'll take the heat for that."
Three Detroit errors, including two on the same play by third baseman Brandon Inge, opened the door to three more runs for St Louis in the sixth.
St Louis last won the World Series in 1982 but lost in 1985, 1987 and 2004.