A trip to Anfield has become the most daunting match in English football unless, that is, you are Sam Allardyce.
'Big Sam' pulled off another masterstroke on Sunday, guiding likely relegation contenders West Bromwich Albion to a 1-1 draw at Liverpool as the champions dropped points at home for the first time in their Premier League title defence.
It was only Allardyce's second match in charge of West Brom since taking over, for his first managerial job in 18 months, with the Baggies second bottom.
Allardyce led Crystal Palace to a 2-1 win over Liverpool at Anfield in April 2017. That remains the last time the Reds lost a league game at home.
Indeed, Allardyce is unbeaten in each of his past four league games at Anfield - with Sunderland, Palace, Everton and now West Brom.
"We kept a tight ship all the way through," said Allardyce, who is out to prove once again why he has a status as the survival specialist.
Liverpool were on their way to an eighth home league win in a row when Sadio Mane controlled on his chest a pass from Joel Matip, swivelled and struck a fierce low shot into the corner in the 12th minute.
However, from one of West Brom's rare forays forward, a cross from the right was met by Semi Ajayi to send his header into the net off the post in the 82nd.
Liverpool are top of the table and three points clear of Merseyside neighbours Everton but the Reds' defensive problems mounted when Matip hobbled off with a left adductor injury in the 60th.
"It is not a game we will talk about in 20 years," disgruntled Liverpool manager Juergen Klopp said.
Wolverhampton Wanderers striker Raul Jimenez made a welcome return to Molineux for the first time since sustaining a fractured skull in a game on November 29.
He watched from the stands as teammate Romain Saiss scored an 86th-minute equaliser to grab a 1-1 draw with Tottenham Hotspur.
Wolves conceded after just 57 seconds when Tanguy Ndombele smashed a low shot from 20 metres past Wolves goalkeeper Rui Patricio, who was wrong-footed.
Saiss snatched a point for the mid-table hosts by heading in a Pedro Neto corner.
By conceding, Tottenham missed a chance to move into third place, instead climbing to fifth and six points behind Liverpool.
Elsewhere, Leeds United edged Burnley 1-0 with Patrick Bamford converting a contentious fifth-minute penalty while West Ham United twice pegged back visitors Brighton & Hove Albion to draw 2-2.