Manchester United took another step closer to securing a Champions League spot as they thumped rivals Manchester City at Old Trafford on Sunday afternoon. Louis van Gaal's side now sit four points ahead of their neighbours and just one point adrift of Arsenal who currently occupy second place in the division. Here's how Sportsmail rated each player... Manchester United (4-1-4-1) DAVID DE GEA 6.5 – More effective with his feet than his hands, coming out of his box time and again to clear. Will be disappointed to let in Aguero’s second. ANTONIO VALENCIA 6.5 – Kept City’s threat at bay down the right and even switched to the left at one point to stop Aguero setting up an almost certain goal. PHIL JONES 6 – Caught ball watching for the first goal and looked ponderous at times, but also made some crucial interception tackles . David De Gea  celebrates during the Premier League match between Manchester United and Manchester City . Phil Jones  in action with Jesus Navas  during the Manchester derby at Old Trafford on Sunday . CHRIS SMALLING 6.5 – Selected ahead of Marcos Rojo, made up for his needless red card in the Etihad derby earlier this season by scoring United’s fourth . DALEY BLIND 6 – Got forward well and was involved in two of United’s three goals but looked susceptible to the pace of Navas on defence . MICHAEL CARRICK 7 – His calming influence in midfield was so important for United again, and also produced several timely interceptions. Marouane Fellaini helps Manchester United take the lead at Old Trafford as Joe Hart looks on in anguish . JUAN MATA 7.5 – Two goals against Liverpool and now one against City, Mata finally looks as though he is settled as a United player and deserved his standing ovation. ANDER HERRERA 6 – More solid than the eye-catching performances of late, but played his part in maintaining United’s midfield dominance. MAROUANE FELLAINI 7.5 – A familiar story for United’s unlikely hero. City never really got to grips with his awkward presence and took his goal well. Wayne Rooney jumps on top of the Belgian goalkeeper as Manchester United celebrate at Old Trafford . ASHLEY YOUNG 8 – Quick reaction to score United’s first goal and provided the deliveries for another two for Fellaini and Smalling. Young’s remarkable renaissance under Louis van Gaal continues. WAYNE ROONEY 6.5 – Had less impact in a 4-1 win than you might have expected but still played a key role for the team and set up the third for Mata. Subs: Rafael, Rojo (for Jones 75, 6), Di Maria (for Mata 81, 5.5), Falcao (for Fellaini 83, 6), Januzaj, Valdes, McNair. Scorers: Young, Fellaini, Mata, Smalling . Booked: none . Spanish midfielder Juan Mata takes on fellow countryman Jesus Navas at Old Trafford on Sunday . Manchester City (4-4-1-1) JOE HART 5.5 – Will be unhappy that he allowed Fellaini’s header to creep past him at the near post but had little chance with the others. PABLO ZABALETA 5 – Caught out for United’s first goal and struggled to get forward as much as usual but set up Aguero’s second. VINCENT KOMPANY 5 – Cleared to play despite a hamstring problem but seemed to aggravate it in a rash lunge on Blind that could have been a red card. Subbed at half-time. Martin Demichelis and Joe Hart  celebrate as Sergio Aguero scores at Old Trafford . MARTIN DEMICHELIS 6 – Solid enough despite losing his centre-back partner at half-time and getting an arm in the face from Fellaini. GAEL CLICHY 5 – The Frenchman’s break from deep helped set up City’s opener, but it was his man who scored on both occasions as United surged into the lead. JESUS NAVAS 5 – Failed to beat De Gea with a great early opportunity and continues to lack a cutting edge despite his searing pace. Former Arsenal defender Gael Clichy slides in for the ball against Manchester United's Ashley Young . YAYA TOURE 6 – Great vision with some of his passing but the big Ivorian is still not imposing himself on games as much as he used to. FERNANDINHO 5.5 – Fantastic early challenge on Herrera but faded after that as United came back to take control of the game. JAMES MILNER 5.5 – Skied one attempt into the Stretford End like he was kicking at Twickenham. A frustrated figure when he was subbed after being fouled by Jones. DAVID SILVA 6 – Got the assist for City’s first goal but outshone by Mata and was booked for fouling his Spanish compatriot out of frustration. Manchester City defender Vincent was booked and subbed as they crashed to defeat at Old Trafford . SERGIO AGUERO 7 – Can’t argue with two goals in a derby game away from home but United were home and dry by the time the second went in. Subs: Fernando, Nasri (for Milner 63, 6), Dzeko, Kolarov, Caballero, Lampard (for Navas 74, 5.5), Mangala (for Kompany 46, 6). Scorer: Aguero 2 . Booked: Milner, Silva, Kompany . Referee: Mark Clattenburg 7 . Star man: Ashley Young . Louis van Gaal – 7 . Manuel Pellegrini – 4 . Phil Jones lunges in on Manchester City ace Sergio Aguero as the Argentinean takes sight of goal .
Ashley Young kicked off a Manchester United comeback with his goal . Vincent Kompany endured a torrid time before being subbed at the break . Marouane Fellaini and Juan Mata both scored in Manchester derby win . Sergio Aguero scored twice, but his teammates were not up to his level .