That is according to Soccerex's transfer review, which has gathered data from last year's signing across the continent.
And Sanchez has topped the value list after featuring in 86 per cent of Arsenal's games during the 2014/15 campaign.
The Chile international joined the Gunners from Barcelona for £35million and went on to score 25 goals and set up a further 12.
Angel Di Maria's £59.7m move from Real Madrid to Manchester United was the biggest disappointment, playing just 48 per cent of the Red Devils' minutes.
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Alexis Sanchez named as best value signing as Angel Di Maria disappoints
The Argentine winger has since been sold to Paris Saint-Germain in a cut-price deal worth £44m.
Fellow Old Trafford signings Ander Herrera (£29m) and Luke Shaw (£31m) managed just 55 per cent and 33 per cent of United's minutes, respectively.
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