Postpublished at 13:01 Greenwich Mean Time 21 February 2015
Boro striker Jelle Vossen tries a first-time shot from just outside the area and this time Leeds stopper Marco Silvestri watched it go just wide rather than having to make another save.
Leeds hold on to beat Boro
Early Mowatt goal enough for visitors
Leeds keeper Silvestri makes flurry of saves
Hosts have 27 shots on goal
Mandeep Sanghera
Boro striker Jelle Vossen tries a first-time shot from just outside the area and this time Leeds stopper Marco Silvestri watched it go just wide rather than having to make another save.
Former Middlesbrough & Leeds defender Danny Mills
BBC Radio 5 live at the Riverside Stadium
"Leeds have got to get in at half-time 1-0 up to be in any chance of winning this game. Conceding now would be very damaging psychologically for them. And they are living dangerously."
Opta Joe:, external 16 - Leeds United have lost 16 points from leading positions in the Championship this season, only two clubs have lost more. Nerves.
I'm not sure Boro are going to be able to beat Leeds keeper Marco Silvestri today as he is having an inspired match. Boro midfielder Adam Clayton's low shot is fended away by Silvestri and the ball falls to one of his team-mates to clear.
Middlesbrough go straight up the other end and Albert Adomah's shot on the turn from six yards out is blocked by an under pressure Leeds defence.
Leeds string a few passes together and give Boro a scare but there's a mix-up between Scott Wooton and Rodolph Austin as they leave a cut back to each other and the home side clear.
Former Middlesbrough & Leeds defender Danny Mills
BBC Radio 5 live at the Riverside Stadium
"Sometimes when a goalkeeper starts to get so busy he can become impossible to beat. That shot from Kike was always rising you feel but Marco Silvestri did well to get to the ball. Middlesbrough's finishing has not been as good as perhaps manager Aitor Karanka would like, but Leeds have to get hold of it here. At the moment it is all Boro."
Marco Silvestri is a one-man wall currently denying Boro. The Leeds keeper is having a stormer and is at his athletic best in tipping away a dipping Kike shot.
Leeds get a free-kick on the halfway line to give them some much-needed respite. It doesn't last long though as a left-foot Grant Leadbitter shot goes wide of the visitors' goal.
Leeds keeper Marco Silvestri is a busy boy and he spreads himself to block a Jelle Vossen shot at point-blank range following Albert Adomah's right-wing cross.
It's all Boro at the moment.
Leeds defender Giuseppe Bellusci picks up the first yellow of the game. From the resulting free-kick, Grant Leadbitter ambitiously tries a shot from 35-yards out but his effort takes a deflection before looping into the Leeds six-yard box. Boro striker Jelle Vossen goes up for a header but, under pressure, he can't get decent purchase and Leeds keeper Marco Silvestri gathers.
Middlebrough aren't top for nothing and they are showing plenty of threat. A Jelle Vossen volley is well-saved and then Leeds keeper Marco Silvestri again gets something to a poked shot from the Boro forward before the ball is cleared off the line.
Former Middlesbrough & England defender Danny Mills
BBC Radio 5 live at the Riverside Stadium
"This is turning into an interesting match. Middlesbrough will have to push on and chase the game, but they have to be careful not to force the issue. There is still an awful long way to go in this game. Yes it was a setback, the sloppy goal. But they will create chances. At the moment there is a little bit of panic about their play, and maybe they are starting to feel the pressure of being league-leaders. They need to get back to playing their own game."
Middlebrough's rivals will have their Leeds scarves out as a defeat for Aitor Karanka's side will give them a massive boost before they play later. As it stands, Bournemouth and Derby could go top if they beat Brentford and Sheffield Wednesday respectively later on.
Boro boss Aitor Karanka took a chance by leaving striker Patrick Bamford on the bench and making so many changes after a tough draw with 10-man Birmingham in midweek. The decision isn't looking too clever at the moment but there's a long way to go.
Former Middlesbrough & England defender Danny Mills
BBC Radio 5 live at the Riverside Stadium
"Neil Redfearn was in charge of the Leeds academy before taking over the first team - like Tim Sherwood did at Spurs. Redfearn knows the younger players, he knows their character.
"At the moment there isn't an awful lot of money to play with, what with the lack of an owner if you like, and Redfearn has put his belief in youth. You will have good days and bad days when you are playing with young players, but it's a great start for Leeds. Middlesbrough like to push forward and look very neat and tidy, but they are susceptible to the counter attack here."
Nice work from Boro striker Kike as he jinks past a Leeds defender and has a sight of goal but he sees his shot saved by keeper Marco Silvestri. Talk about an all-action start to the game.
A Boro corner quickly turns into a Leeds counter and if Lewis Cook's ball for Steve Morison had been more precise the visitors would have been in again.
Boro have a great chance to get an immediate equaliser. A well-worked free-kick finds Jelle Vossen unmarked about 15 yards out but he badly mistimes his shot and Leeds clear.