The young defender hasn't seen much football in the past year.
The 22-year old has just one substitute appearance for Spurs in competitive games since his move in January, and doubts have been raised regarding his match sharpness.
The speedy right-back remains an ever present for the US national side, however, and feels his international exploits have kept him in good condition.
“I think right now I’m in pretty good shape… I just played two 90 minutes games with the US, although I was playing right midfield,” said Yedlin.
“I got those games under my belt, so I think I’m ready to last a 90-minute game now.
“Every day on the training pitch, or in the game, it’s a time to prove yourself. Hopefully I’ll get my chance and can show what I can do,” he added.
Yedlin is among several of Sunderland’s summer recruits who were not regulars at their previous clubs, and concerns over the squads fitness levels have been understandable.
The Black Cats were competitive against Spurs for 75 minutes on Sunday before the Lilywhites' superior fitness seemed to give them the edge in the dying embers of the game.
Dick Advocaat spoke yesterday in the Echo about the dilemma he faces over his team’s fitness, but will be confident he can now count on the Spurs loanee after his latest assurances.