Juergen Klopp's side remain seventh, six points behind the Champions League places, after only their second defeat in the 12 games since the German took over in October
IMAGES from the Premier League matches played across England on Sunday.
"Our first half was fantastic, we dominated the game. The second is not easy to explain," a baffled Pochettino told reporters. "No-one would expect this end to the game if you see the first half. "We need to assess and analyse the second half because it is impossible to see the team playing in such a different way."
Fulham striker Hugo Rodallega headed the decisive goal to seal a 2-1 win over Newcastle United in an absorbing Premier League match at Craven Cottage on Monday.
Newcastle United's Dutchman Giorginio Wijnaldum scored four times as they won their first Premier League match this season at the ninth attempt by thrashing Norwich City 6-2 to climb off the bottom of the table on Sunday.
Newcastle United thrashed Queens Park Rangers 6-0 away to move into second place in the Championship (second tier) on Tuesday with former Liverpool midfielder Jonjo Shelvey scoring twice.
Newcastle United finally put manager Steve McClaren out of his misery when they sacked him on Friday after a period of intense speculation surrounding his future.
Liverpool snatched three points with a wild 1-0 victory over relegation-threatened Nottingham Forest.
Newcastle United said Kevin Keegan was still their manager after a day of speculation that he had been sacked after just eight months in the job.
Everton's Theo Walcott struck just after halftime to secure a 1-0 home win over Newcastle United, on Monday, that took the Merseysiders up to eighth in the Premier League, their highest position this season.
Rafa Benitez's much-changed side with a youthful streak had looked set to coast through when Sean Longstaff's deflected shot put them ahead after 56 seconds and Callum Roberts volleyed home a second four years since his only other Newcastle appearance.
Newcastle United eased their relegation fears with a 2-0 home win over Fulham on Saturday as attention focused on the battle to stay in the Premier League.
Newcastle United drew a scrappy Premier League relegation clash 1-1 at Birmingham City on Monday leaving coach Kevin Keegan still without a win in eight league matches since returning to the club. The draw lifted Newcastle one spot to 14th with 29 points from 30 matches, while Birmingham rose from 17th to 16th taking their tally to 27 points from 30 games.
Sunderland are still not safe after losing 2-0 at Newcastle United in the day's second derby, Michael Owen scoring twice for Kevin Keegan's resurgent side at St James' Park.
Spain manager Luis de la Fuente left Barcelona's 17-year-old defender Pau Cubarsi and midfielders Marcos Llorente and Aleix Garcia out of his 26-man squad
Newcastle United maintained their unbeaten start to the season Saturday, sending Wigan Athletic to the bottom of the Premier League with a 1-0 victory at St James' Park thanks to a late winner from Frenchman Yohan Cabaye.
The 51-year-old resigned from Blackburn Rovers where he had been in charge since 2000.
Burnley beat Blackburn Rovers 2-0 at Ewood Park in their East Lancashire derby but Premier League sides Southampton and Newcastle United crashed out of the English League Cup to Championship opposition in Wednesday's second-round games.
Tottenham Hotspur's poor start to the season showed little sign of improving when they were beaten 3-1 by Newcastle United.
Kevin de Bruyne struck twice to inspire Manchester City to a dominant 4-2 win at Crystal Palace on Saturday and move the champions level on points with Liverpool at the top of the Premier League table.
His reflections on the origins of mass sparked a nearly five-decade, multi-billion dollar search for a subatomic particle, later known as the 'Higgs boson', which was thought to hold the key to understanding the nature of the universe.
Michael Owen could play for the first time since the 2006 World Cup in the Premier League game at Reading.
Newcastle United assistant manager John Carver and Wigan Athletic first team coach Graham Barrow have been fined 1,000 pounds by the FA following an altercation at halftime in a Premier League match last month.
Premier League clubs have been in discussions to finish the season, which has nine rounds remaining, and the possibility of a restart next month was given a boost when the government said elite sport could return after June 1.
Manchester City and Arsenal closed in on Premier League leaders Liverpool with contrasting victories on Saturday as Manchester United's bubble was burst by Fulham.
Wolverhampton Wanderers stunned Tottenham Hotspur 2-1 with stoppage-time goals from Pablo Sarabia and Mario Lemina on Saturday, thwarting the visitors in their bid to reclaim top spot in the Premier League table.
Police said they had interviewed Lee Bowyer and Kieron Dyer after their on-pitch brawl during an English Premiership game earlier this month.
The Newcastle captain scored the only goal in the first leg of their UEFA Cup quarter-final against Sporting Lisbon at St James' Park.
Premier League Newcastle United's FA Cup hopes floundered on England's south coast for the second year in a row as Championship club Brighton and Hove Albion kicked off third round action with a 2-0 victory on Saturday.
Bernardo Silva and Jack Grealish scored three minutes apart as Manchester City came from behind to beat Premier League newcomers Luton Town.
The England striker agreed to join Newcastle United on a four-year contract
Former England captain Alan Shearer carries the hopes of an entire city when he leads Newcastle United in tonight's UEFA Cup semi-finals against Olympique Marseille.
Former England manager Kevin Keegan will receive two million pounds in compensation after his former club Newcastle United was found guilty by a tribunal of constructive dismissal on Friday.
Newcastle United striker Demba Ba struck in the last minute to salvage a 2-2 draw with Everton in a pulsating Premier League match at Goodison Park on Monday.
A hat-trick by Paul Scholes was the feature of their 6-2 win in the English premiership.
Newcastle United grabbed a Premier League lifeline Monday when late goals by substitutes Obafemi Martins and Peter Lovenkrands secured a 3-1 home win over fellow relegation strugglers Middlesbrough.
Former England and Newcastle United captain Alan Shearer will manage Newcastle United for the remainder of the season, according to television reports on Tuesday.
Arsenal reclaim provisional top spot with 1-0 win at Man United