Cristhian Stuani scored an inspired double as Middlesbrough maintained their unbeaten start to life back in the Premier League with a 2-1 win over winless Sunderland.
The Uruguayan fired Boro in front with a sumptuous strike from distance, before he scored a tap-in after being teed-up by team-mate Alvaro Negredo.
Patrick van Aanholt gave Sunderland a lifeline as he bundled the ball past Brad Guzan in the second half.
Teenager Joel Asoro came off the bench to become the Black Cats' youngest Premier League player ever but the hosts were unable to find an equaliser in David Moyes' first home game in charge of the club.
Moyes' concerns will be even greater after the loss of John O'Shea to injury in the first half, with his exit further stretching a squad already depleted by the enforced absences of Sebastian Larsson, Jan Kirchhoff, Lee Cattermole, Billy Jones and Lamine Kone.
Following the departure of Younes Kaboul to Watford, the Sunderland boss deployed a centre-back partnership of new boy Papy Djilobodji and O'Shea, while Paddy McNair operated in midfield.
Boro manager Aitor Karanka replaced Albert Adomah with Stuani in one of three changes from the 1-1 draw with Stoke City last weekend, and it quickly paid dividends.
Stuani was not closed down by Van Aanholt and used the opportunity to rifle a sensational 25-yard strike into the top-left corner.
It was a blow for Sunderland having been in control until that point, and although they regained their grip on the game, the hosts found it difficult to break down the Boro defence.
Moyes had to replace the injured O'Shea with debutant Steven Pienaar in the 37th minute, with Jack Rodwell subsequently dropping into the centre of defence.
And Boro added to Sunderland's woes on the stroke of half-time when Adam Forshaw slid an excellent pass into the box for Negredo, who showed great composure to cut inside and square for Stuani to round off an excellent move with his second.
Sunderland were booed off at half-time but started to the get the fans back onside and Van Aanholt's low shot from the left-hand side of the box was parried behind by Guzan after 60 minutes.
The pressure continued to build and, after substitute Jeremain Lens and Jermain Defoe had efforts blocked, it paid off in the 71st minute when Van Aanholt pounced after Guzan spilled Duncan Watmore's 20-yard shot.
Adnan Januzaj came close to marking his first Sunderland start with a goal, but despite being visibly rattled, Boro managed to hang on for the three points and their first win since returning to the top flight.
..... - Goal