Carlo Ancelotti's short stint as manager of Chelsea is often underrated.
The Italian only spent two years in west London, but left the English capital with a Premier League winners medal to his name - as well as an FA Cup.
Ancelotti's team in 2009/10 was one of the finest to grace English shores, a side littered with winners at the peak of their powers.
At the centre of Chelsea's success that season was the club's all-time top goalscorer, Frank Lampard.
It was arguably the English legend's finest campaign as he scored 22 goals and notched 16 assists in his 36 Premier League games.
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Only Didier Drogba (29), Wayne Rooney (26), Darren Bent (24) and Carlos Tevez (23) scored more than Lampard during 2009/10.
But amazingly, Lampard's efforts were not enough to earn him a spot in the PFA Team of the Year.
Cesc Fabregas, James Milner, Darren Fletcher and Antonio Valencia were the midfield quartet selected, with Drogba and Rooney up top.
Fabregas' season for Arsenal in 2009/10 was also mighty impressive as the Spaniard scored 15 times and assisted another 13 in his 27 appearances.
However, despite Fabregas' valiant efforts, Lampard's goal/assist to game ratio was still superior and his output helped secure the league title.
It's probably fair to say that Lampard's season in 2009/10 was the finest ever by a Premier League midfielder.
Only Yaya Toure's virtuoso campaign in 2013/14 - which secured Manchester City the title - can really compare.
Bizarrely, Chelsea only had two players in the entire PFA Team of the Year in 2009/10, with Branislav Ivanovic joining Drogba.
Despite United finishing behind the Blues, they still managed to get four players nominated in Rooney, Fletcher, Valencia and Patrice Evra.
Sometimes, there really is no justice in football.