White Hart Lane side edge out Blades in tight first leg clash.
Tottenham edged out League One opposition in this first leg encounter at White Hart Lane.
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An even first half saw the lower league visitors make a good fist of it despite surrendering a great deal of possession to their Premier League opponents.
Defender Eric Dier went close late on in the first period with this glancing header.
Tottenham took the lead when Andros Townsend powered in a spot-kick following a fairly straightforward handball from Blades defender James McEveley.
Nigel Clough’s side are still very much in the tie and may prove a real handful in the second leg encounter at Bramall Lane.