Middlesbrough’s push for automatic promotion suffered a major setback as Conor Chaplin struck in the 97th minute to give Portsmouth a 1-0 victory at the Riverside Stadium. The defeat kept Middlesbrough fourth in the Championship, while Ipswich Town’s earlier win against Norwich City and two games in hand strengthened Ipswich’s position in the race.

The late twist also changed the picture near the bottom of the table, as Portsmouth moved out of the relegation zone and climbed above Oxford United. Elsewhere, Southampton boosted play-off ambitions against Derby County, while Leicester City’s situation worsened after defeat to Swansea City left Leicester 23rd and four points from safety with four matches remaining.

Middlesbrough started strongly and created the better chances for most of the contest, but Portsmouth stayed organised and frustrated the hosts. Alan Browne almost broke the deadlock early when Jeremy Sarmiento’s wing play opened space, yet Nicolas Schmid blocked Browne’s low effort to keep Portsmouth level in a tense Championship promotion battle.

Middlesbrough increased the tempo after the break, again testing Schmid as Riley McGree unleashed a powerful strike that required another sharp save. Tommy Conway then went close, sending a shot just wide of the far post, but constant pressure did not bring a goal, leaving the Middlesbrough crowd anxious as stoppage time approached in this crucial Championship fixture.

The decisive moment arrived deep into second-half stoppage time, when Portsmouth launched a rare attack and punished Middlesbrough. Adrian Segecic met a loose ball on the edge of the area with a volley, and Chaplin diverted it past the goalkeeper for Portsmouth’s only effort on target, completing a dramatic smash-and-grab and damaging Middlesbrough’s promotion hopes.

While Middlesbrough slipped, Southampton strengthened play-off prospects by overturning a deficit to beat Derby County 2-1 at St. Mary’s. Derby went ahead seven minutes before half-time, when Carlton Morris reacted at the back post from a corner and finished from close range, punishing Southampton’s failure to clear during this important Championship promotion and play-off clash.

Southampton, still buoyed by a heavy victory over Wrexham in the FA Cup and preparing for a semi-final, responded after the interval with greater urgency. The equaliser arrived in the 62nd minute as Leo Scienza finished a flowing counter-attack, bending a curling shot beyond Richard O’Donnell, before Taylor Harwood-Bellis headed in Ryan Manning’s free-kick seven minutes later to complete the turnaround.

Middlesbrough Championship promotion battle and Leicester relegation worries

At the lower end of the Championship, Leicester City’s relegation concerns deepened as Swansea City secured a 1-0 win through the division’s leading scorer, Zan Vipotnik. The defeat dropped Leicester to 23rd place, above only already-relegated Sheffield Wednesday, leaving Leicester four points adrift of safety with just four league fixtures left in this tense campaign.

Data debrief figures showed how Middlesbrough’s late-season form continued to slide at a crucial time in the Championship promotion race. Kim Hellberg’s side failed to answer Ipswich Town’s earlier victory, extending Middlesbrough’s winless sequence to six league matches, with three draws and three defeats, their longest run without a win in this season’s Championship schedule.

Middlesbrough’s attacking wastefulness again played a key role, with 20 shots and eight on target producing an expected goals value of 1.28, compared with Portsmouth’s 0.51 from only three attempts. The contrast underlined the clinical nature of Chaplin’s decisive strike, as Portsmouth converted their single effort on target while Middlesbrough missed chances that could have tightened the Championship promotion race.

The results left Middlesbrough frustrated in the hunt for automatic promotion, as Ipswich Town kept control with games in hand, while Portsmouth gained a vital lift by escaping the bottom three. Southampton strengthened their play-off standing, and Leicester City faced growing pressure near the foot of the Championship, with limited time left to change the picture.