Willian became the fastest-scoring substitute of the Premier League season as his inadvertent equaliser for Chelsea on Sunday denied Liverpool a spot in the top four.

While the Brazil forward quickly got going, Alexis Sanchez affirmed his affinity for late drama by continuing Arsenal's trend of breaking Burnley hearts.

Neither side did it as easy Watford, though, as Marco Silva's men built on their away-day blueprint.

Here, we look at the key stats from the weekend's Opta data.

 

WILLIAN'S INSTANT IMPACT

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Chelsea winger Willian's equaliser was the fastest goal off the bench this season.

 

Just 144 seconds after entering the pitch, Willian denied Liverpool what would have been a satisfying end to a more than five-year wait for a Premier League win at home to Chelsea.

The Brazilian's equaliser was the fastest goal off the bench this season and means Liverpool has still not managed a top-flight victory over the Blues since prevailing 4-1 in May 2012.

Antonio Conte knows the frustration: Jurgen Klopp's side remains the only team he has not beaten in the Premier League.

Indeed, Liverpool is unbeaten in its last six league games against Chelsea (W2 D4) – its joint-longest run against the Blues in the competition's history.

ARSENAL'S LATE SHOWS

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Arsenal forward Alexis Sanchez has four goals in his last five Premier League appearances against Burnley and has only scored more against Sunderland (six) and Hull City (seven).

 

Arsenal's last-gasp win on Sunday extended its unbeaten run against Burnley to 10 matches, but the record could easily have read far differently in recent times.

Sanchez's 92nd-minute penalty was the Gunners' third-successive stoppage-time winner between the teams, the previous victory having also come courtesy of a spot-kick from the Chilean.

It was also the third consecutive home match in which the Clarets have lost 1-0 to Arsene Wenger's side.

Sanchez, meanwhile, now has four goals in his last five Premier League appearances against Burnley and has only scored more against Sunderland (six) and Hull City (seven).

WATFORD'S AWAY WONDERS

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The Hornets' superb 3-0 win at Newcastle United on Saturday took its tally to 13 points from seven away league games this campaign (W4 D1 L2).

 

Watford's home away from home, it seems, is just about wherever it decides to make it.

The Hornets' superb 3-0 win at Newcastle United on Saturday took its tally to 13 points from seven away league games this campaign (W4 D1 L2), already a greater haul than the 10 it accrued throughout last term.

More importantly, 21 points from 13 games marks the club's joint-best start to a top-flight season, equalling the number set on the way to finishing second in 1982-83.

Watford's dominance posed fresh headaches for Rafael Benitez, who was left with back-to-back home defeats for only the second time as a Premier League manager.

CITY'S SECOND-HALF HEROICS

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Raheem Sterling's strike six minutes from time sealed Manchester City's 11th-straight away win in all competitions - a record for English clubs.

 

Not only did Raheem Sterling's strike six minutes from time seal Manchester City's 11th-straight away win in all competitions - a record for English clubs - it also completed his club's first top-flight turnaround from a half-time deficit since April 1995 (3-2 against Blackburn Rovers).

Sergio Aguero provided the equaliser, making Huddersfield Town the 31st opponent he has scored against in the Premier League. Bolton Wanderers is the only team to have been spared by the Argentine.

And the striker must be thankful to fellow scorer Sterling given the England attacker has won all three penalties he has converted this season.

While the Terriers will count themselves unlucky, the tough truth is they have now been beaten in five of its last seven league fixtures - a sharp departure from the lone loss it suffered over its opening six outings.