Middlesbrough kept their hopes of a top-two finish in the Championship alive with a comeback victory against promotion rivals Sheffield United.
The Blades are seven points clear of third-placed Boro, despite losing for the first time since 8 November, and also have a game in hand on Michael Carrick's men.
But Boro's victory, secured with Cameron Archer's second-half double after Chuba Akpom had cancelled out Oli McBurnie's early opener for second-placed Sheffield United, will give them renewed hope that they can close the gap in the final weeks of the campaign.
United boss Paul Heckingbottom was sent off for his protests after Boro's third goal, which came after referee Andre Marriner played on despite appeals for a foul on James McAtee and the Blades later surrendered possession, from which Archer finished a swift counter-attack.