There is often nothing more dangerous than a striker with a point to prove as Daniel Sturridge and Divock Origi showed in Liverpool's League Cup mauling of Southampton on Wednesday.
Fans are openly speculating that owner Roman Abramovich, a man who places notoriously high demands on his managers, could call time on Jose Mourinho's second spell at Stamford Bridge if Liverpool can inflict another defeat on the champions.
Juergen Klopp's reign as Liverpool manager began with a few points made but only one gained from an exciting, end-to-end 0-0 draw against Tottenham Hotspur at White Hart Lane on Saturday.
Liverpool manager Juergen Klopp has a midfield conundrum and his Tottenham counterpart Mauricio Pochettino must decide whether Harry Kane is ready for action as both bosses face selection dilemmas for Saturday's Champions League final.
Whatever happens in the title battle between Manchester City and Liverpool, which will go down to the final day of the season
Danny Welbeck, making his first appearance of the season as a late substitute, headed a stoppage-time winner to give Arsenal a 2-1 home win over league leaders Leicester City in the Premier League on Sunday.
A stunning strike from 18-year-old Curtis Jones gave a youthful Liverpool a 1-0 win over Everton in their FA Cup
News of all that's transpired on and off the football field
Arsenal's Aubameyang compared to Henry after his derby double
A game that had been meandering along amid much mediocrity came to life on the stroke of halftime when Can's extraordinary overhead scissors kick from Lucas's chipped through ball rocketed into the top corner.
Chelsea ticked off three more points in their Premier League title quest with a 2-1 victory over Manchester City on Wednesday but Tottenham Hotspur's Houdini-like 3-1 win at Swansea means the race is far from over.
Premier League heavyweights Liverpool and Manchester United were caught by late sucker punches in two games that finished far more dramatically than they began on Sunday.
'So, the Champions League final will be played between two teams who just don't know when they are beaten,' says Suhit K Sen.
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
Determined defending and unstinting effort kept the League Two team in the game against opponents lying second in the Premier League, almost 70 places above them.
Chelsea maintained their stranglehold on the Premier League by beating Sunderland 1-0 on Wednesday to register their 10th successive win and move six points clear at the top of the table.
Liverpool's defence of a Premier League crown won at a canter last season has become a nightmare
Images from the Champions League football matches played on Wednesday night.
Manchester United and Chelsea secured places in the Champions League with wins on the final day of the Premier League season while Watford and Bournemouth were relegated along with bottom club Norwich City.
The following is a look back on key moments in the thrilling Premier League title race, won by Manchester City on Sunday:
Liverpool were beaten 1-0 away to Atletico Madrid in their last-16 first leg on Tuesday.
ManchesterCity beat Liverpool 3-1 on penalties to win the League Cup after Sunday's final finished 1-1 after extra time.
Liverpool laboured to a 2-0 win over Denmark's Midtjylland on Tuesday as a goal from Diogo Jota and a Mohamed Salah penalty secured a hard-fought Champions League Group D victory at Anfield.
On a crazy evening it looked as though Joe Willock's screamer had earned Arsenal a memorable victory, but Liverpool proved irrepressible as their barnstorming season continued.
Liverpool surrendered a two-goal lead as they were held to a 2-2 draw by third-tier Shrewsbury Town in the FA Cup fourth round on Sunday after second-half substitute Jason Cummins struck twice to inject some much-needed late magic into the competition. Earlier, Harry Maguire's thunderbolt for Manchester United started a goal rush at Tranmere where the Reds scored five times before halftime. Diogo Dalot, Jesse Lingard, Phil Jones, Anthony Martial and Mason Greenwood also scored.
Liverpool manager Juergen Klopp enjoyed a satisfying return to Borussia Dortmund as his new side frustrated his former charges and claimed a valuable away goal to draw 1-1 in their Europa League quarter-final, first leg on Thursday.
Alex Oxlade-Chamberlain became the second England international to leave Arsenal in two days when he joined Premier League rivals Liverpool for a reported 40 million pounds on Thursday.
Tottenham Hotspur reached the semi-finals of the Champions League on away goals after a 4-3 (aggregate 4-4) defeat to Manchester City in a breathtaking quarter-final second leg game on Wednesday.
Liverpool added another fairytale comeback to the history books as they fought back from 3-1 down against Borussia Dortmund to reach the Europa League semi-finals after Dejan Lovren's towering stoppage-time header secured a 4-3 win on Thursday.
Manchester United opened up the Premier League title race with a convincing 2-0 home victory over leaders Chelsea on Sunday that leaves second-placed Tottenham Hotspur just four points behind.
City's Aguero doubtful starter for Watford trip
A round of Wednesday night's Champions League group stage matches.
A summary of sports events and sports persons, who made news on Tuesday
A summary of Tuesday's Group stage matches in the UEFA Champions League.
A round-up of Wednesday's night's UEFA Chmpions League matches.
Liverpool had won each of their previous four home leagues games in which they conceded first and 12 minutes later they had turned another match on its head as Roberto Firmino's trickery set up Mane to give the hosts the lead at the second attempt.
Philippe Coutinho inspired Liverpool to a comfortable 3-1 home win over Everton in the 228th Merseyside derby on Saturday to move provisionally up to third in the Premier League.
Belgium make Wales wait after Hazard's strike, while Czechs beat Latvia to qualify