United's 20-13 title
A victory over Aston Villa saw Manchester United claim their 20th league title.
Having lost the 2011-12 Premier League title to Man City on goal difference, Sir Alex went out and made a statement by signing Robin van Persie from Arsenal.
United's quest to regain the title did not start well as Everton's Marouane Fellaini put them to the sword at Goodison Park in the first game of the season.
Robin van Persie's first major contribution for United came as he claimed a match-winning hat-trick in a 3-2 win at Southampton.
The important goals kept coming, with Van Persie netting the winner against Liverpool at Anfield. He also scored in a home victory over the Reds later in the season.
More traditional rivals were blown away in October as Chelsea were beaten away and Arsenal at home in successive games, Javier Hernandez scoring the winner in a 3-2 victory at Stamford Bridge.
Chicharito was at it again against Aston Villa, coming off the bench to inspire another 3-2 win - a scoreline United achieved five times in their first 16 games
The most memotable of those 3-2 victories was achieved at Eastlands, as Robin van Persie's free-kick winner in stoppage-time arguably providing the key moment in the 2012-13 title race.
Wayne Rooney may have often been outshone by Van Persie but he nonetheless provided plenty of important goals, inspiring United to home and away victories over Reading with three goals across two games.
Patrice Evra enjoyed a particularly prolific season, scoring four goals having previously managed just three in seven years.
A Champions League exit at the hands of Real Madrid was difficult for United to take but they lifted themselves up for their Premier League charge.
Ryan Giggs scored for a remarkable 23rd successive season, bagging against Everton in a win that was one of seven in a row in February and March, with just one goal conceded in that time.
Manchester City tailed off in the second half of the season and their 2-1 victory at Old Trafford meant little in the grand scheme of things.
Michael Carrick has enjoyed arguably his finest season in a United shirt, receiving a PFA Player of the Year nomination along with Van Persie.
Van Persie endured a ten-match goal drought but came back strong to score five in three games, including a sumptuous hat-trick against Aston Villa to secure the title.
Sir Alex Ferguson and Ryan Giggs: United's stalwarts now both boast 13 Premier League winners' medals each