Spoils were shared in two huge Premier League derbies, Chelsea's cracking start continued with a 3-0 win over Aston Villa and Wayne Rooney produced a Jekyll and Hyde display in a nervy Manchester United victory on Saturday.
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.
Manchester City roared back to the top of the Premier League with a 6-1 thrashing of Bournemouth after Manchester United steadied the ship
On a day of frenetic spending that took the Premier League total to a record far above one billion pounds ($1.29 billion), Antonio Conte's side also missed out on two of their other targets - Alex Oxlade-Chamberlain and Fernando Llorente.
Manchester City maintained their perfect start to the season with a 2-0 victory over promoted Watford as champions Chelsea suffered a shock 2-1 home defeat by Crystal Palace on Saturday.
Chelsea exploited Manchester City's decision to field a weakened team by romping to a 5-1 win in the FA Cup fifth round on Sunday as they joined London rivals West Ham United and Crystal Palace in the quarter-finals.
Photos from the English Premier League matches played on Saturday
Manchester City stayed ahead of age-old local rivals Manchester United at the top of the Premier League on Saturday with a deserved 1-0 win away to champions Chelsea.
Chelsea heaped more Christmas misery on Liverpool with a 2-1 victory at Stamford Bridge and Olivier Giroud ended a seven-game scoring drought to help Arsenal win 1-0 at Newcastle United and return to the top of the Premier League on Sunday.
Arsenal crushed Middlesbrough 4-1 while Chelsea ended the challenge of minor League Scarborough with a 1-0 win.
Eden Hazard expects to enjoy playing with greater freedom and less pressure on his shoulders this season as Premier League leaders Chelsea demonstrate their strength in depth by challenging for four trophies, including the Champions League.
Manchester United midfielder Angel Di Maria will miss Tuesday's game against Stoke City and is set for an extended spell on the sidelines after limping out of Saturday's 3-0 win over Hull City.
Schalke 04 halted the Chelsea juggernaut when they drew 1-1 in their Champions League Group G opener at Stamford Bridge on Wednesday, handing a wake-up call to the London club who had won their first four games of the season.
Frank Lampard, Chelsea's all-time record scorer, came on as a late substitute for Manchester City and scored their equaliser in a 1-1 draw at the Etihad as the champions ended his former club's perfect start to the Premier League season on Sunday.
Chelsea's commanding start to the Premier League season continued with a 3-0 victory over Aston Villa on Saturday as their rivals for the title continued to look vulnerable.
Manchester United bolstered their squad with a flurry of transfer deadline day signings, Manchester City and Liverpool also splashed out while ambitious Brighton & Hove Albion sealed an audacious loan deal for Barcelona's Ansu Fati on Friday.
Carlos Tevez marked his Manchester City return by setting up Samir Nasri's late winner in a vital 2-1 home victory over Chelsea on Wednesday that kept the pressure on leaders Manchester United in the title race.
Chelsea overcame a resilient Portsmouth to win a dramatic FA Cup final 1-0 at Wembley Stadium on Saturday and achieve their first League and Cup Double.
He was held late on Tuesday after an animal health official and two police officers went to his central London home to remove his dog.
Manchester United stretched their unbeaten run to 11 games in all competitions after Daley Blind, in-form striker Zlatan Ibrahimovic and substitute Henrik Mkhitaryan gave them a 3-1 home win over Sunderland on Monday. Left back Blind fired United ahead with a crisp 39th-minute shot after Ibrahimovic teed him up perfectly. The towering Swede doubled the lead with a clinical 82nd-minute finish for his 17th goal of the season. Fit-again Mkhitaryan put the icing on the cake with a spectacular backheel effort after a sharp Ibrahimovic cross from the right, although television replays suggested the Armenian was marginally offside. Striker Fabio Borini gave Sunderland fans something to cheer with a dipping late volley.
Chelsea snatched a dramatic late goal through Demba Ba to beat Paris St Germain 2-0 and reach the Champions League semi-finals on the away goals rule on another memorable European night at Stamford Bridge on Tuesday.
Yokohama beat Shandong to book Asian Champions League last 16 berth
Leicester go five clear after win at Everton
Substitute Jesse Lingard struck twice in the second half as Manchester United fought back from 2-0 down to earn a 2-2 Premier League draw with Burnley at Old Trafford on Tuesday.
Didier Drogba cemented his name in Chelsea folklore with his 150th goal for the club on Saturday but it was not enough to prevent a 3-1 home defeat by Aston Villa in the Premier League.
Until last season, Manchester United had never lost in the Premier League at Upton Park but the Londoners, who also triumphed at Old Trafford in May, made it two in two seasons with late goals by defenders Anton Ferdinand and Matthew Upson.
Eden Hazard and Fernando Torres applied the gloss to a workmanlike 2-0 victory at Hull City that lifted Chelsea ominously to the top of the Premier League on Saturday.
IMAGES from the English Premier League matches played on Saturday
Holders Chelsea came from two goals down to draw 2-2 with Manchester United on Sunday and earn a replay of their FA Cup quarter-final, inflicting further pain Alex Ferguson's side who have endured a week to forget.
Images from the Premier League matches played on Sunday.
Tottenham Hotspur have appointed former Celtic coach Ange Postecoglou as their new manager on a four-year contract.
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.
News of all that's transpired on and off the football field
Chelsea's on-loan Brazilian international Alexandre Pato scored on his debut to help push pathetic Aston Villa to the verge of inevitable relegation with a seventh successive Premier League defeat on Saturday. Pato, the former Milan starlet who has been kicking his heels since joining from Corinthians two months ago, came on as a 25th-minute substitute and was immediately involved in the move which led to Ruben Loftus-Cheek netting his first league goal.
Now, if he can keep at bay an England attack that might include club mates Raheem Sterling and Mason Mount, Mendy could yet finish the year on another high note, having started it with success in the Africa Cup of Nations.
Arsenal missed the chance to heighten the congestion at the top of the Premier League and suffered fresh injury blows when a frustrating 1-1 draw at Norwich City failed to take them alongside leaders Manchester City and Leicester City on Sunday.
Juventus' wretched start to the season continued when they needed a late penalty to avoid defeat as the Serie A champions were held to a 1-1 home draw by early leaders Chievo Verona on Saturday.
Diego Costa was on target again as Chelsea overcame a defensive West Bromwich Albion 1-0 to return to the top of the Premier League with their ninth victory in a row on Sunday. The Spaniard's second-half strike sent the Blues three points clear of Arsenal, who had taken the overall lead on goals scored on Saturday after seeing off Stoke City 3-1 at the Emirates.
Manchester City passed the first big test of their "big four" credentials on Saturday when they beat Arsenal 4-2 to make it four wins out of four while Chelsea maintained their perfect record with a 2-1 win at Stoke City.
Stevan Jovetic and Jesus Navas scored their first goals for ManchesterCity who avenged last season's shock FA Cup final defeat by Wigan Athletic with a 5-0 victory in the League Cup third round on Tuesday.