Previously unbeaten, the visitors were undone by Minhyeok Yang, who capped a magnificent week by bagging a 23rd-minute winner for John Mousinho’s men.
Pompey had to dig deep defensively for long spells, yet did so magnificently, ensuring Josef Bursik barely had a save to make as they kept Middlesbrough at bay superbly
5. Connor Ogilvie - 8
Had to do plenty of defending and rock solid as ever and absolutely unflappable. Seems to be striking up an encouraging understanding with Yang down the left flank. Still balls down the left in the fifth minute of stoppage-time. Photo: Steve Bailey
6. Andre Dozzell - 8
Such a consistent performer, but there is plenty more to Dozzell than that. Covers so much ground and always right on the spot to either pass or intercept. Strong start to season. Photo: Steve Bailey
7. Marlon Pack - 8
Has made such a big difference to the Blues since returning to the side and another strong display against Middlesbrough. Dictates play beautiful and one second-half crossfield pass was a moment of class. Photo: Graham Hunt
8. Conor Chaplin - 7
(Replaced by Adrian Segecic on 64 mins) Far, far better for the Ipswich loanee after a couple of poor displays. Sharp, clever and very lively operating off the right. Came agonisingly close to scoring on 19 minutes when his first-time from Yang’s pull-back deflected just wide. Photo: Stephen Flynn