Follow the main live for all the reaction from this and the rest of the day's action.
- Fimino & Sturridge start up front for Liverpool
- Gestede preferred to Negredo by Boro
- Liverpool must match or better Arsenal result to make Champions League
Never in doubt.
Apart from the first 45 minutes that is.
A few flares are alight in the stands and Jurgen Klopp clamps his hand to his heart in relief.
Adam Forshaw whiffs a shot straight into the arms of Simon Mignolet.
You'll Never Walk Alone is ringing around Anfield and the Kop barely miss a note.
Liverpool bring on Alberto Moreno for James Milner and the Reds skipper hands the armband onto Lucas as he departs.
A popular move.
Lucas is being urged to shoot every time he touches the ball...
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You can't see any way of the top four changing now.
Body language reading glasses at the ready.
Daniel Sturridge departs, clapping the Liverpool fans, but not waving, before high-fiving Jurgen Klopp on his way back to the bench.
Divock Origi on.Copyright: Reuters
Middlesbrough deserve at least a goal really.
Adam Forshaw screws a volley just wide after being fed in by an Alvaro Negredo flick.
After Middlesbrough introduce Alvaro Negredo and former Liverpool defender Daniel Ayala, Liverpool make a sentimental change.
Lucas Leiva - the hosts' longest serving player - comes on to make probably his final appearance.
Off heads Robert Firmino.Copyright: Reuters
Daniel Sturridge fixes Grant Leadbitter with a stepover and sends a long-range effort whistling just wide.
Might this be his final appearance in a Liverpool shirt? Fit and firing, he undoubtedly adds an extra dimension in attack.
More delicious build-up without the final flourish from Liverpool as Georginio Wijnaldum and Roberto Firmino zap passes between each other and then the latter crosses to the former with a little no-look clip.
Wijnaldum swipes a foot at his volley but the ball spins harmlessly wide.
Liverpool are trying to post a late entry into their goal of the season showreel.
Philippe Coutinho springs Roberto Firmino with a ridiculous outside-of-the-foot flick, but his compatriot's lay-off for Gini Wijnaldum is a touch too far with the goal beckoning.
It would have been a postcard-perfect move though...
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It doesn't matter.
Gabriel Jesus adds the fifth - and it is Sergio Aguero who provides it.
Aguero turns on the gas down the right, looking up to intelligently pull back to the young Brazilian.
He gets a touch of luck with a dodgy first touch, then brilliantly pokes in over a jumping Watford defender on the line.Copyright: PA
The goals are only flowing one way at Vicarage Road...
It has all gone a little end-of term basketball.
Chances at either end with Adam Forshaw denied by a fingertip stop from Simon Mignolet before Philippe Coutinho bullets a low effort just wide.
The party has started already though.
The action is just the soundtrack.Copyright: Reuters
Fire up the theme music, that is surely Champions League nights back at Anfield.
From a Middlesbrough corner, the Reds break at speed and in number.
After an initially disappointing cross, the ball breaks back to Adam Lallana who saunters through and slots past Brad Guzan.Copyright: Reuters
And Roberto Firmino comes close to a third!
The Brazilian controls on his chest and swats a volley goalwards from 12 yards out.
It was a sweet connection, but straight into a defender's chest.
That was zeroed in on the back of the net if not.
And the collective frown is finally turning around at Anfield.
Philippe Coutinho lines up his effort and sends a low skidding effort round the wall and inside Brad Guzan's far post.
The keeper was unsighted, but down slowly anyway.
The whole atmosphere has lifted.Copyright: Reuters
Adam Clayton blunders in on Daniel Sturridge. Free-kick.
And this is well within the Phiippe Coutinho zone.
Twenty-five yards out or so and the Brazilian with first dibs...
An early coming together between Emre Can and Rudi Gestede in the Liverpool box.
The German midfielder has come off worse, but a quick squeeze of the magic sponge and he is ready to go.
And we are back under way.
Liverpool are 45 goalless minutes away from a Champions League return.
But with their defence and record of conceding late goals, you wouldn't bet on it.
They might just need to score more.