Sheffield Wednesday denied Huddersfield a return to the top of the Sky Bet Championship with a 1-0 win at the John Smith's Stadium.
Fernando Forestieri's second-half penalty was enough to separate the sides in a thunderous Yorkshire derby played out in front of a crowd of 22,368 - Huddersfield's biggest league attendance on this ground.
Wednesday's second away win of the season boosts their own promotion aspirations, with the Terriers failing to win at home for the first time this season.
Championship side Sheffield Wednesday have signed former AC Milan and Roma defender Urby Emanuelson.
The left-back, who has 16 Netherlands caps, previously played in England for Fulham,
Emanuelson will be available to face Wigan on Saturday.
Second-half goals from Marcus Antonsson and Chris Wood gave Leeds a 2-0 victory over Yorkshire rivals Sheffield Wednesday at Hillsborough.
Antonsson headed the opener shortly after the hour mark and Wood's late goal clinched Garry Monk's first league win as Leeds manager.
Sheffield Wednesday forward Fernando Forestieri has apologised to the club's fans after refusing to play in Saturday's Championship fixture at Norwich.
Forestieri is facing punishment from the club after failing to travel with his Wednesday team-mates amid speculation linking him with a move away from the Owls.
The incident had raised concerns among fans that last season's top scorer would be leaving before this summer's transfer deadline, but Wednesday have since made it clear they will not be selling their star man.
The Argentine used his Twitter account to reassure supporters that he is happy to remain at the club despite becoming distracted by speculation linking him with Newcastle.
There are a lot of rumours and opinions going around which have been blown out of proportion and are upsetting. I just want to clarify I have never wanted to leave and have always and still do want to play for Sheffield Wednesday! I apologise for my behaviour and know there is no excuse! I hope we can move on so I can focus only on my passion!
Mohamed Diame's 70th minute stunner sent Hull back into the Premier League at the first time of asking at Sheffield Wednesday's expenseRead the full story ›
Sheffield Wednesday can expect an instant cash boost of at least £170million if they clinch promotion to the Barclays Premier League this weekend.
That is the value of victory to the Owls in Saturday's Sky Bet Championship play-off final - the match regularly billed as the most lucrative one-off game in football - according to financial experts at Deloitte.
Wembley opponents Hull can also expect a huge revenue uplift if they triumph, although the value to them is less, at £110million, as they will have to forgo parachute payments pending following relegation last year.
The record £170million minimum promotion prize is an increase of £40million on the figure estimated for last year owing to the rise in Premier League TV rights. The figure breaks down as £95million for next season - mostly from central distributions but also increased commercial activity and gate receipts - and £75million in guaranteed parachute payments if relegated. If the club avoid the drop next year, the overall figure rises to £290million.
The son of former Sheffield Wednesday striker David Hirst has signed a professional deal with the Championship club.
George, 17, has penned a contract that runs until the summer of 2018.
Like his father, Hirst is also a striker, impressing for both the club's under-18 and under-21s.
Wednesday are my boyhood club and it is a dream to sign on professional terms. I am absolutely delighted to sign and there is nowhere else I would rather be.
I came here five or six years ago and from then, I’ve never really looked back and here I am today signing my first contract.
Obviously the hard work really begins now. I’ve worked hard to get this opportunity and now it’s all about kicking on, becoming a better player and who knows maybe the first team in the near future hopefully.