Dave Koslo will face Allie Reynolds this afternoon at the Yankee Stadium in what will probably be the most anti-climatic World Series in baseball's history. The Series will be both televised and broadcast over the radio.

Scarcely had Bobby Thompson slammed Ralph Branca's ninth-inning pitch into the left field stands yesterday before managers Leo Durocher of the Giants and Casey Stengel of the Yankees began to work on today's line-ups.

Henry Thompson will start in right field for the Giants in place of Don Mueller. Mueller twisted his ankle sliding into third base in the thunderous ninth inning. Thompson, after a fine season last year, got off to a bad start this spring and was sent back to the minors. He was only recently recalled from the minors.

Koslo has been strangely moribund during the Giants' epic dash for the covered flag. The big Jefty has a 10 and 9 record for the year. Reynolds will go into the first game of the Series carrying a 17 and 9 mark.

Before Thomson came up in the ninth inning, he had already collected two hits, one of them a double. But he had also made two bonehead plays, one of which let in one run and kept the rally going in the Dodgers' big eighth inning.

In the last of the ninth inning the Giants were trailing, 4 to 1. Alvin Dark singled off big Don Newcombe, and so did Mueller, sending Dark to third. Monte Irvin, leading hiter on the Giant squad, popped out, but Whitey Lockman doubled to score Dark and put the tying run on bose.

Chuck Dressen, Dodger manager, lifted Newcombe and put in Branca to pitch to Thomson. The Staten Island Scot took hold of Branca's second pitch and knocked it into the left field stands to win the ball game for the Giants.

The odds are 3-5 in favor of the Yankees winning the Series