The New York Times is reporting that Rodriguez, the 2005 American League Most Valuable Player, is expected to announce this week that he will play for the U.S. in the 16-team event in March.
Rodriguez withdrew from the event last month because he couldn't decide whether to play for the U.S. or the Dominican Republic and didn't want to insult the one he didn't choose.
Since Rodriguez was born in New York and raised in Miami, he is eligible to play for the U.S. However, since his parents are from the Dominican Republic, the slugging third baseman also is eligible to play for his parents' homeland.
Players from all 30 major league teams are expected to play in the WBC. About 200 players already have committed to participate.
Two other members of the Yankees are also slated to play -- outfielder Bernie Williams for Puerto Rico and second baseman Robinson Cano for the Dominican Republic.
Outfielder Hideki Matsui of the Yankees has decided not to play for Japan.
The 16 teams will be divided into four pools and feature round-robin play in each of the first two rounds. Japan will host the opening round in Pool A, which also includes Korea, China and Chinese Taipei, from March 3-6.
The top two finishers will travel to the U.S. for the second round to face the qualifiers from Pool B, which includes Team USA, beginning March 13.
The top two teams from each second-round pool advance to the single-elimination semifinals and finals, which will be held at Petco Park in San Diego from March 18-20.
The WBC will be held again in 2009 and every four years thereafter.