[HEXAGONAL COUNTDOWN] Houston Dynamo midfielder Brad Davis has been added to the U.S. national team roster for the World Cup qualifying matches against Costa Rica and Mexico. Davis, who dressed for but did not play in the Hexagonal opener at Honduras, is the 24th player in camp.

Coach Jurgen Klinsmann can dress 23 players -- including three keepers -- for a World Cup player. He took 24 players to Honduras and did not dress Matt Besler.

Davis joins Eddie Johnson, DaMarcus Beasley, Joe Corona and Brek Shea as options for Klinsmann on the left side of midfield.

Shea has only played briefly since his move to Stoke City and admitted after the first day of training on Monday his injured foot was still bothering him.

UPDATED U.S. ROSTER:
GOALKEEPERS (3): Brad Guzan (Aston Villa), Sean Johnson (Chicago Fire), Nick Rimando (Real Salt Lake)
DEFENDERS (6): Tony Beltran (Real Salt Lake), Matt Besler (Sporting Kansas City), Geoff Cameron (Stoke City), Omar Gonzalez (LA Galaxy), Clarence Goodson (Brondby), Justin Morrow (San Jose Earthquakes)
MIDFIELDERS (10): DaMarcus Beasley (Puebla), Kyle Beckerman (Real Salt Lake), Michael Bradley (Roma), Joe Corona (Club Tijuana), Brad Davis (Houston Dynamo), Maurice Edu (Bursaspor), Jermaine Jones (Schalke), Sacha Kljestan (Anderlecht), Brek Shea (Stoke City), Graham Zusi (Sporting Kansas City)
FORWARDS (5): Jozy Altidore (AZ), Terrence Boyd (Rapid Vienna), Clint Dempsey (Tottenham), Herculez Gomez (Santos), Eddie Johnson (Seattle Sounders FC)