Pep Guardiola's 5 worst signings to date

#3 Keirrison

Keirrison never played a game for Barcelona

The deal to sign Keirrison will ultimately go down as one of the worst signings in the history of the Catalan club. Barcelona spent a transfer fee of around £12million for the highly-rated Brazil forward back in 2009.

It was always going to be interesting to track his progress, not least after netting 21 league goals for Coritiba in Campeonato Brasileiro Serie A the season beforehand.

Immediately loaned out to Portuguese giants Benfica for the 2009/10 campaign, they wanted to see how he would react to playing European football at a good level - without having the pressure and expectations that come with playing for a side of Barcelona's stature and prestige.

Unsuccessful loan spells there, as well as elsewhere such as Serie A side Fiorentina, Santos and Cruzeiro meant that his development stalled dramatically as he struggled for regular minutes and a consistent run of form which would have propelled him to earn a first-team place in Spain.

He returned to Brazil in 2014, when his Barcelona contract was terminated by mutual consent. Coritiba welcomed him back with open arms on a permanent deal, all without him managing to make one single appearance for the Catalan giants.