David Edwards's header midway through the first half has given Wolverhampton Wanderers a 1-0 advantage over Middlesbrough after 45 minutes at Molineux.
Benik Afobe escaped the attentions of the Boro defence in the 11th minute but could only fire wide, and 60 seconds later Tomas Kalas forced Emiliano Martinez into an athletic save.
Edwards put Wolves ahead in the 24th minute as he nodded home Scott Golbourne's precise cross following an incisive move by the hosts.
Martinez was forced into another save a few moments later as he dived to his left to deny George Friend.
Edwards was then presented with a chance to double his and Wolves' tally shortly before the break, but the midfielder snatched at his effort and the ball sailed over the bar.