Smith and Tom Robson on target in win in the Potteries.
Stoke City U18 0 Sunderland U18 2
Sunderland followed up their midweek victory at high-flying Everton with a 2-0 win at Stoke City.
Martin Smith and Tom Robson bagged the goals for the young Black Cats, who won their fifth consecutive game in all competitions.
Sunderland started well and took the lead in the 18th minute as good link-up play set American striker Lynden Gooch on his way before he set the ball off cleverly to Smith, who smashed into the roof of the net from the edge of the area.
The young Black Cats had further chances in the first half with both Gooch and Luke Molyneux firing efforts just wide.
An early second-half goal all but secured the points as Robson burst into the area and neatly slotted the ball under the keeper to finish a fine move.
Stoke went more direct in the closing stages but the youngsters weathered the storm and could have increased the lead further late on.
Solid defending and a couple of fine saves from Peter Burke ensured the young Black Cats travelled back to Wearside with all three points.
Coach Carlton Fairweather said: “It was a really good display and another fine win for us.”
Sunderland: Burke, Ledger, T Robson, Smith, Colquhoun, Beadling, Greenwood (J Robson, 84), E Robson, Molyneux (McEvoy, 65), Gooch, Stinson.
Subs not used: Blinco, Talbot, Nelson.