Depleted by suspensions and a particularly burdensome injury, Jurgen Klinsmann on Sunday dipped even deeper into the U.S. national team's talent pool.
Defender Clarence Goodson and midfielders Jose Torres, Brad Davis and Joe Corona were called in ahead of the United States' key World Cup qualifier Tuesday against Mexico in Columbus, Ohio.
The USA was in need of roster reinforcements after Geoff Cameron, Matt Besler and Jozy Altidore drew suspensions with yellow cards Friday and midfield general Michael Bradley suffered an ankle sprain in pregame warm-ups.
U.S. Soccer on Sunday confirmed Bradley is out for Tuesday's contest, and also announced 20-year-old defender John Brooks has been released back to Bundesliga side Hertha Berlin.
Goodson, 31, appears to be the strongest candidate to start among the call-ups, with a slot open alongside Omar Gonzalez in central defense. Michael Orozco, who started at right back in Friday's 3-1 loss at Costa Rica, is his strongest competition at the position.