Kagawa claimed his first goal in first half stoppage time, beating Norwich goalkeeper Mark Bunn with a near-post volley. He then doubled United’s tally 14 minutes from time, and completed his treble in the 87th minute.
Wayne Rooney got on the score-sheet in the final minute with a beautiful strike into the top-left corner from outside the box.
Tottenham striker Gareth Bale stole the spotlight as Spurs secured a crucial 2-1 win over Arsenal.
Bale scored in the first half at White Hart Lane before Aaron Lennon doubled Tottenham’s lead moments later.
Per Mertesacker replied early in the second half, but Tottenham hung on for the win – they are now unbeaten in their last 12 league games.
Carlos Tevez kept Manchester City’s faint title hopes alive by taking the champions to a 1-0 win at struggling Aston Villa.
Tevez struck on the stroke of half-time after Villa’s Ciaran Clark gifted possession to Edin Dzeko, who set up his team-mate to beat goalkeeper Brad Guzan.
Chelsea drew a line beneath manager Rafael Benitez’s scolding of the club’s fans by winning 1-0 at home to West Brom.
Oscar and Juan Mata both went close for Chelsea in the early stages before Demba Ba scored the only goal in the 28th minute, hooking home from six yards after David Luiz headed Oscar’s deep cross from the left back across goal.
Liverpool’s Luis Suarez improved his tally for the Premier League season to 21 goals in a 4-0 win at Wigan.
Stewart Downing’s headed opener put Liverpool in front inside two minutes and Suarez struck twice, once before half-time and then early in the second half.
Jack Collison gave West Ham United a 1-0 win at Stoke City, striking in first-half stoppage time to give West Ham their first away win since November.
Bottom club Queens Park Rangers boosted their bid to avoid relegation by winning 2-1 at Southampton.
Jay Bothroyd tapped in a cross from Park Ji-sung in the 77th minute to give QPR the victory at St Mary’s, after Loic Remy’s 14th-minute opener was cancelled out by Gaston Ramirez’ goal on the stroke of half-time.
Reading suffered a setback in their fight to avoid relegation in a 3-1 defeat at Everton.
Marouane Fellaini broke a deadlock with a 42nd-minute header, and Steven Piennar made it 2-0 in the 59th minute.
Pienaar then created Everton’s third in the 66th minute with a through-ball converted by Kevin Mirallas, before Hal Robson-Kanu replied for the Royals.
Sunderland came from two goals down to draw 2-2 at home to Fulham at the Stadium of Light.
A Dimitar Berbatov penalty and a Sascha Riether strike put the visitors 2-0 up inside 35 minutes, but Craig Gardner reduced the arrears from the penalty spot and Stephane Sessegnon claimed a 70th-minute equaliser.
Elsewhere, an 85th-minute Luke Moore goal earned League Cup winners Swansea City a 1-0 win at home to Newcastle United, pushing victims Newcastle back towards the danger zone.
In The Phuket News tipping competition: congratulations to player colinsmith99 who led the February table with 73 points, eight points ahead of challenger Paul614724.
In the overall standings, suncat100 is still atop the table with 560 points, stretching his lead slightly over the closest challenger Blackrosebar on 513.
This month (March 2013) the competition is sponsored by Australia Bar & Grill in Kata. The monthly winner will receive a B3,000 voucher to spend at the venue.
The overall winner at the end of the season will win a brand new Honda Scoopy courtesy of AP Honda.
Tom's Tips Week 31:
West Ham v Man United Lose
Arsenal v Everton Win
Man City v Wigan Win
Newcastle v Stoke Win
Norwich v Southampton Win
QPR v Sunderland Lose
Reading v Aston Villa Win
West Brom v Swansea Draw
Fulham v Chelsea Lose
Liverpool v Tottenham Lose