Luis Suarez, Gareth Bale, Juan Mata - All these players have impressed in 2012/13 and taken big steps forward.
But what about those who have taken backwards steps? There are plenty, but we have highlighted five who have gone backwards.
It is not that these five have just had poor seasons - it is more led by the fact they had sensational seasons in 2011/12, and this season has seen a regression, rather than getting better like the trio above.
Here are the five most disappointing players of 2012/13...
Antonio Valencia (Manchester United)
There can be no disputing Antonio Valencia's place on this list. He was superb last season and if United had pipped City to the title it would have been down to his performances. This season he has been a different player, making just five Premier League assists compared to 14 the year before, with his inaccurate crossing the principle reason for lack of productivity, while others may blame the pressure of being handed the number seven shirt.
Clint Dempsey (Tottenham)
Clint Dempsey had a summer to forget, a stressful situation made out of a desperation to leave Fulham of his own making. He almost ended up at Aston Villa before Spurs rescued him, but he has struggled to adapt. Now the American has had some good moments, a winner and equaliser against Manchester United, but his goal tally does not lie. Dempsey has just five goals in the Premier League compared to the 17 for Fulham a year before.
Emmanuel Adebayor (Tottenham)
The second Tottenham player in the list, Adebayor can also not argue with his inclusion here. Last season he was the top choice striker at the club, but since signing permanently has been a disappointment, turning in a number of lethargic performances. He has just two Premier League goals compared to 17 for the club a year ago, a worse return than Dempsey.
Stephane Sessegnon (Sunderland)
Stephane Sessenon was sensational for Sunderland when Martin O'Neill took over, and was quickly linked with big money moves to Arsenal and Tottenham. Neither club appear interested in him now, with Sunderland's lack of spark principal seeing O'Neill dismissed. He has five assists this season compared to 11 the year previous.
David Silva (Manchester City)
David Silva has been excellent in flashes this season, but the Spaniard has not been the dominant force he was in the early part of 2011/12. A return to form against Newcastle may mean his inclusion here gets a few City fans' backs up, but his nine assists compared to 17 a year ago signifies a drop off in performance. A starring display once again at Old Trafford on Monday can help him, like City, salvage some pride. Silva is one of the Premier League's top players, which means he is held to higher standards than anybody else, and a failure to hit the heights of last season as consistently means it has been a disappointing campaign as he has not progressed to become even better.
Thomas Vermaelen (Arsenal)
Thomas Vermaelen has been arguably the biggest disappointment of the season, going from Arsenal captain to third choice centre-back. The defender was a prolific goalscorer last season for Arsenal for a defender, netting six times - but has failed to find the net once this season. His defending has been equally as ropey as his attacking and will cause much reflection for his manager.
Who do you agree with and who have you been disappointed by?
image: © wonker