Feilhaber joined the Rams on a three-year contract from Hamburg on Wednesday but was ineligible for the 1-0 defeat to Manchester City at Eastlands, the 22-year-old restricted to a warm-up session with his new team-mates.
Davies is nonetheless confident the America international will be allowed to make his debut against Spurs, saying: "We need the international clearance before 5pm Friday, but I am optimistic we will receive the paperwork in time."
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