Rob Holding - (On for Odegaard 90+1’) N/A. Reuters
WATFORD RATINGS: Ben Foster - 7: No chance with three excellent Arsenal finishes after Watford’s defence had been ripped apart on each occasion. Getty
Kiko Femenia - 7: Right-back supplied fine cross to set-up Cucho for his superb leveller. Another perfect ball into box ball in second half should have been finished by Dennis. Crossing was real threat for Watford. Reuters
Samir - 5: Struggled with pace and movement of Arsenal’s attacks – as did Watford’s defence as a whole. PA
Craig Cathcart - 7: Important block on Martinelli shot just before half-time and Irish defender made a number of other key challenges. AP
Hassane Kamara - 5: Arsenal tore down Kamara’s left flank for early goal and he struggled generally with combination of Saka and Soares. Drilled shot over bar in second half. Reuters
Moussa Sissoko - 7: Key role in move that led to Cucho’s goal. Should have done better with shot he blazed over from edge of box midway through first half. Did well to bundle past White and finish past Ramsdale to pull late goal back. Getty
Imran Louza - 6: Moroccan midfielder saw ambitious free-kick from distance easily saved after 23 minutes. His loose pass out for throw-in resulted in Arsenal scoring their third goal - but Watford fans voiced their disapproval at his second-half substitution. Getty
Tom Cleverley - 4: Caught in possession on edge of own box by Saka to help gift Arsenal their second goal. Hit second-half chance straight at Ramsdale after woeful clearance from Gunners keeper. Getty
Cucho Hernandez - 7: Brazilian hit sensational overhead-kick to level for Hornets in 11th minute. Ridiculous triple roll across ground after being caught slightly in face by White arm early in second half. Reuters
Joao Pedro - 5: Started brightly and denied certain goal by quick reactions of Ramsdale after keeper failed to hold onto initial shot but his influence quickly waned. Getty
Emmanuel Dennis - 6: Scored after just 17 seconds but was disallowed for offside. Good piece of skill to beat Gabriel and fire off low shot that Ramsdale saved just before half-hour mark. Awful miss-hit at back post after being teed-up by Femenia in second half. Getty
SUBS: Edo Kayembe - (On for Louza 64’) 5: Little impact after coming on. AFP
Samuel Kalu - (On for Cleverley 90+1’) N/A.
ARSENAL RATINGS: Aaron Ramsdale - 5: No chance with Cucho’s stunning finish. Spilled shot from Dennis and had to react quickly to stop Pedro scoring rebound. Lucky not to be punished for two poor clearances in second half. AFP
Cedric Soares - 7: Right-back played key role in move for Gunners’ early goal and combined well with Saka throughout. Booked for foul on Pedro. Getty
Ben White - 7: Assured performance from former Brighton defender highlighted by one big interception to stop Dennis scoring in second half - but will be disappointed by the way Sissoko bundled past him to score late goal. Reuters
Gabriel - 6: Skinned by Dennis in first-half and saw Nigerian attacker sting palms of Ramsdale but that was rare blemish from Brazilian centre-half. Reuters
Kieran Tierney - 6: Given run-around by Sissoko ahead of Watford’s equaliser and an unusually quiet game going forward down left flank from Scot. AFP
Thomas Partey - 7: Ghanian midfielder Curled strike from outside of box just wide of target in 19th minute. Kept things simple in middle of park. PA
Granit Xhaka - 7: Embarrassing attempt at first-time volley in opening half that he shanked high and wide. Usual relentless tackling and work rate. Helped control midfield alongside Partey. AP
Bukayo Saka - 9: Lovely exchange of passes with Odegaard before setting up Norwegian’s opener. Scored second himself after picking pocket of Cleverley before unleashing unstoppable finish. His quick throw started move for third. PA
Martin Odegaard - 8: Norwegian swept home cool finish to put Gunners in front after five minutes. Barely gave away a pass all afternoon in quality performance. PA
Gabriel Martinelli - 7: Quiet first-half down left flank as Arsenal found more joy down opposite side but burst into life just after half-time with excellent first-time finish to put Gunners 3-1 up. AFP
Alexandre Lacazette - 7: Clever back-heel from French attacker set up Saka’s first-half goal and another nice touch to supply Martinelli for third. Fluffed chance to make it 4-1 but captain played important role in win. Reuters
SUBS: Nicolas Pepe - (On for Martinelli 76’) N/A. Curled one shot harmlessly wide. Reuters
Eddie Nketiah - (On for Lacazette 80’) N/A. Hit post with low shot. AFP
Rob Holding - (On for Odegaard 90+1’) N/A. Reuters
WATFORD RATINGS: Ben Foster - 7: No chance with three excellent Arsenal finishes after Watford’s defence had been ripped apart on each occasion. Getty
Kiko Femenia - 7: Right-back supplied fine cross to set-up Cucho for his superb leveller. Another perfect ball into box ball in second half should have been finished by Dennis. Crossing was real threat for Watford. Reuters
Samir - 5: Struggled with pace and movement of Arsenal’s attacks – as did Watford’s defence as a whole. PA
Craig Cathcart - 7: Important block on Martinelli shot just before half-time and Irish defender made a number of other key challenges. AP
Hassane Kamara - 5: Arsenal tore down Kamara’s left flank for early goal and he struggled generally with combination of Saka and Soares. Drilled shot over bar in second half. Reuters
Moussa Sissoko - 7: Key role in move that led to Cucho’s goal. Should have done better with shot he blazed over from edge of box midway through first half. Did well to bundle past White and finish past Ramsdale to pull late goal back. Getty
Imran Louza - 6: Moroccan midfielder saw ambitious free-kick from distance easily saved after 23 minutes. His loose pass out for throw-in resulted in Arsenal scoring their third goal - but Watford fans voiced their disapproval at his second-half substitution. Getty
Tom Cleverley - 4: Caught in possession on edge of own box by Saka to help gift Arsenal their second goal. Hit second-half chance straight at Ramsdale after woeful clearance from Gunners keeper. Getty
Cucho Hernandez - 7: Brazilian hit sensational overhead-kick to level for Hornets in 11th minute. Ridiculous triple roll across ground after being caught slightly in face by White arm early in second half. Reuters
Joao Pedro - 5: Started brightly and denied certain goal by quick reactions of Ramsdale after keeper failed to hold onto initial shot but his influence quickly waned. Getty
Emmanuel Dennis - 6: Scored after just 17 seconds but was disallowed for offside. Good piece of skill to beat Gabriel and fire off low shot that Ramsdale saved just before half-hour mark. Awful miss-hit at back post after being teed-up by Femenia in second half. Getty
SUBS: Edo Kayembe - (On for Louza 64’) 5: Little impact after coming on. AFP
Samuel Kalu - (On for Cleverley 90+1’) N/A.
ARSENAL RATINGS: Aaron Ramsdale - 5: No chance with Cucho’s stunning finish. Spilled shot from Dennis and had to react quickly to stop Pedro scoring rebound. Lucky not to be punished for two poor clearances in second half. AFP
Cedric Soares - 7: Right-back played key role in move for Gunners’ early goal and combined well with Saka throughout. Booked for foul on Pedro. Getty
Ben White - 7: Assured performance from former Brighton defender highlighted by one big interception to stop Dennis scoring in second half - but will be disappointed by the way Sissoko bundled past him to score late goal. Reuters
Gabriel - 6: Skinned by Dennis in first-half and saw Nigerian attacker sting palms of Ramsdale but that was rare blemish from Brazilian centre-half. Reuters
Kieran Tierney - 6: Given run-around by Sissoko ahead of Watford’s equaliser and an unusually quiet game going forward down left flank from Scot. AFP
Thomas Partey - 7: Ghanian midfielder Curled strike from outside of box just wide of target in 19th minute. Kept things simple in middle of park. PA
Granit Xhaka - 7: Embarrassing attempt at first-time volley in opening half that he shanked high and wide. Usual relentless tackling and work rate. Helped control midfield alongside Partey. AP
Bukayo Saka - 9: Lovely exchange of passes with Odegaard before setting up Norwegian’s opener. Scored second himself after picking pocket of Cleverley before unleashing unstoppable finish. His quick throw started move for third. PA
Martin Odegaard - 8: Norwegian swept home cool finish to put Gunners in front after five minutes. Barely gave away a pass all afternoon in quality performance. PA
Gabriel Martinelli - 7: Quiet first-half down left flank as Arsenal found more joy down opposite side but burst into life just after half-time with excellent first-time finish to put Gunners 3-1 up. AFP
Alexandre Lacazette - 7: Clever back-heel from French attacker set up Saka’s first-half goal and another nice touch to supply Martinelli for third. Fluffed chance to make it 4-1 but captain played important role in win. Reuters
SUBS: Nicolas Pepe - (On for Martinelli 76’) N/A. Curled one shot harmlessly wide. Reuters
Eddie Nketiah - (On for Lacazette 80’) N/A. Hit post with low shot. AFP
Rob Holding - (On for Odegaard 90+1’) N/A. Reuters