Tottenham's Barclays Premier League title tilt suffered what could prove to be a knockout blow after West Brom left White Hart Lane with a battling point on Monday night.
Spurs now need a minor miracle to pip leaders Leicester to the crown as Craig Dawson cancelled out his earlier own goal to earn Tony Pulis' Baggies a share of the spoils in a 1-1 draw.
We look at the things we learned on a potentially pivotal night in north London.
1. Leicester can be champions next Sunday
With Spurs dropping two points here, Claudio Ranieri's Foxes can claim their first top-flight title with victory at the home of 20-time winners Manchester United.
Leicester travel to Old Trafford on Sunday afternoon knowing they need to just add one more win to the 22 they have already accrued to move far enough clear of Mauricio Pochettino's chasers.
Even three draws from their remaining games would be enough and Spurs have the prospect of a London derby against current champions Chelsea next Monday if Leicester stumble in the north-west.
2. Spurs know their race is almost run
Kyle Walker lay on the turf as referee Mike Jones blew the full-time whistle, with the knowing reaction often seen by players on the losing side of a knockout game.
The dejected faces of his team-mates as they left the pitch also suggested Tottenham know they are all but out of the fight. Jan Vertonghen, Toby Alderweireld and Harry Kane all looked desolate - while the television cameras showed pictures of Tottenham fans remaining in their seats, ashen-faced and wondering what might have been. The title may have slipped from their grasp by the time they all make the short journey to Stamford Bridge in a week's time.
3. Pulis has injected a bit more drive into the Baggies
Four straight defeats after a goalless draw at Sunderland saw them reach the much-heralded 40-point mark has left many to question the West Brom desire in the closing weeks of the campaign.
But this was a much better performance than that against Arsenal four days ago. They frustrated Tottenham for longer spells and created a few clear-cut chances at the other end.
Stand-in goalkeeper Boaz Myhill had to make a couple of great saves and the woodwork came to the visitors' rescue on three occasions - but Pulis got the result his constant bellowing and chastising on the touchline warranted.
4. Dele Alli might be in trouble
Footage from a first-half altercation appeared to show Dele Alli throw a punch at the midriff of West Brom's Claudio Yacob, who had upended the PFA Young Player of the Year twice in the opening exchanges.
After a misdemeanour in Florence in the Europa League, Pochettino said he liked that Alli was a 'naughty boy' and reminded him of his own approach during his playing days.
But Alli put at risk his involvement in the title run-in with a moment of apparent petulance which, if completely unspotted by referee Mike Jones, could yet see him hit with retrospective punishment from the Football Association.
5. Spurs all-star quartet couldn't deliver
Alli, Kane, Alderweireld and Danny Rose were all presented with a commemorative medal before kick-off after being voted into the PFA Team of the Year.
But none of them could provide the spark of inspiration required to break down a resolute West Brom side as Kane hit a post while Alli was subdued, Rose well controlled and Alderweireld unable to do anything about Craig Dawson's equaliser as goalkeeper Hugo Lloris took the decision to come off of his line at the wrong moment.
Even the Tottenham goal came courtesy of an own-goal as Dawson unwittingly directed the ball passed Myhill from Christian Eriksen's delightful free-kick.