Postpublished at 34 mins
Sunderland 0-1 Middlesbrough
As we've already discussed, Adnan Januzaj has been busy on Sunderland's right wing, nearly half of their moves are coming down that flank.
Stuani scores both Boro goals on PL debut
Negredo assists both goals
Van Aanholt pulls one back for Sunderland
Later: West Ham v Bournemouth (16:00 BST)
Emlyn Begley and Shamoon Hafez
Sunderland 0-1 Middlesbrough
As we've already discussed, Adnan Januzaj has been busy on Sunderland's right wing, nearly half of their moves are coming down that flank.
Sunderland 0-1 Middlesbrough
Sunderland try to prize the Middlesbrough backline open with some intricate play, but it's not very good.
Duncan Watmore plays the ball into the feet of Jermain Defoe in the box and the striker stands a Boro defender up. He waits for Watmore to make his run, but the pass is awful and straight into goalkeeper Brad Guzan's hands.
Sunderland 0-1 Middlesbrough
No Lee Cattermole for Sunderland today, missing out against his old club.
He is sat in the stands and tells the young kid next to him, who looks like his son, to sit down and watch the match.
The kid does exactly as he is told.
Cattermole the enforcer on and off the pitch.
Sunderland 0-1 Middlesbrough
Sunderland have the ball in the back of the net but Jermain Defoe's neat finish from inside the area is chalked off as he was offside from Donald Love's pass.
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Edward Taylor: Januzaj. Bags of talent but very little end product. This season key for his future.
Graham Green: There's already more excitement & energy in this Sunderland-Middlesbrough match than in all of Leicester-Arsenal yesterday.
Sunderland 0-1 Middlesbrough
Anything Cristhian Stuani can do, Jack Rodwell can do better?
Not quite. The Sunderland midfielder's drive from outside the box is poor and sails over the crossbar.
Sunderland 0-1 Middlesbrough
Former Sunderland defender Gary Bennett on BBC Newcastle: "Adnan Januzaj has got George Friend on toast. Friend doesn't know how to defend against him. Sunderland need to get the ball to his feet."
Sunderland 0-1 Middlesbrough
First man into the book is Middlesbrough midfielder Adam Clayton, who tries to retrieve the situation after a team-mate gives the ball away, but ends up hacking at Adnan Januzaj on the counter.
Sunderland 0-1 Middlesbrough
Adnan Januzaj is seeing plenty of the ball on the right flank for Sunderland and he has the beating of Boro full-back George Friend at the moment.
The Belgian's delivery has not been the best though. A cut back into the box is cleared easily by the visiting defenders.
The ball is recycled, but striker Jermain Defoe snatches at a shot which rolls harmlessly out of play.
Sunderland 0-1 Middlesbrough
Former Sunderland defender Gary Bennett on BBC Newcastle: "Too many long balls from Sunderland. They're not going to get much change from Ben Gibson and Antonio Barragan. They have to get it down and play and get balls down the side."
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Very good, Stephen
Sunderland 0-1 Middlesbrough
Back at Boro permanently after last season's loan spell, Gaston Ramirez hits a deflected effort which causes Vito Mannone little problem. On another day, it could have looped over his head and into the net.
Seconds later, Adam Forshaw finds space on the edge of the box but drags his shot wide.
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Christopher Wood: What a hit Stuani... Take a bow. Barely been in the game before that!
Sunderland 0-1 Middlesbrough
Well, Moyes' boys, as Sunderland's official Twitter page calls them, have work to do now. They started well but got caught with a sucker-punch.
Sunderland 0-1 Middlesbrough
Former Sunderland defender Gary Bennett on BBC Newcastle: "A great strike. There's only one thing on Cristhian Stuani's mind. He struck it well and there was no way Mannone was saving that. It's the first effort Middlesbrough have had.
"It's a case of character now. Sunderland are all over the place at the moment."
Cristhian Stuani (12 mins)
Thunderbolt.
Middlesbrough have barely got their foot on the ball in the opening stages, but score from their first attack...and what a hit it is.
Alvaro Negredo passes the ball to Cristhian Stuani from about 35 yards out.
The Uruguayan makes his way forward a couple of yards unchallenged, before letting fly with a strike that arrows into the top corner, past the dive of Vito Mannone.
He caught it brilliantly to give Boro the lead.
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Ten minutes or so late with this one, but still worth a mention. A bit of culture.
Sunderland 0-0 Middlesbrough
Adnan Januzaj involved again, playing the ball into the feet of the dangerous Jermain Defoe. The Sunderland striker turns inside the box, but a Boro defender can hack the ball away.
Sunderland 0-0 Middlesbrough
"Watch Adnan Januzaj," Aitor Karanka will have written.
The Belgian almost gets on the end of Lynden Gooch's cross into the box, but it is just too long and drifts out of play.
The on-loan Manchester United man looking dangerous already.
Sunderland 0-0 Middlesbrough
Middlesbrough boss Aitor Karanka rapidly makes notes on his pad while sat in the dugout. He looks like he's running out of time in a GCSE exam. Why's he scribbling so much anyway? Nothing has happened so far.