West Ham manager Sam Allardyce says the loan of American defender George John from Major League Soccer's FC Dallas should soon be finalized.
Allardyce says on the second-tier club's website that "we're close to the George John deal, which is progressing."
The 24-year-old center back is expected to initially move to Upton Park on loan with an option for a permanent transfer.
John's agent, Ted Philipakos, says on his Twitter feed: "Look for announcement today re USMNT and FC Dallas defender George John move."
West Ham is second in the League Championship standings, behind Southampton on goal difference.