Five potential replacements for Cillessen Transfer Market - Barcelona Casteels, Sommer, Mignolet and more

One of the most in demand positions in the transfer market this summer is the goalkeeping position, as Alisson's record-breaking move to Liverpool showed.

Thibaut Courtois could be on the move to Real Madrid and there are rumours about Gianluigi Donnarumma and Keylor Navas too.

The next man on the move could be Barcelona's second-choice goalkeeper Jasper Cillessen, as he has grown tired of being in the shadow of Marc-Andre ter Stegen.

Barcelona are already considering potential replacements, with Koen Casteels and Yann Sommer among the leading candidates.

Here, we take a look at all of those who could fill the gloves.

Koen Casteels (Belgian, 26 years old, Wolfsburg)

After a number of seasons in Germany, it wasn't until last season that Casteels became a regular starter, having been back-up to Thibaut Courtois at Genk in the past.

In 2015 he joined Wolfsburg, where he finally became a starter in 2017 and developed his strength of being good in the air at 197cm tall.

Yann Sommer (Swiss, 29 years old, Borussia Monchengladbach)

An elite goalkeeper and a veteran too, he's good with the ball at his feet.

However, he is already in negotiations with Arsenal and could join Unai Emery's team before Cillessen departs.

He replaced Ter Stegen at Borussia Monchengladbach when the German left for Spain and is now used to being first choice.

Simon Mignolet (Belgian, 30 years old, Liverpool)

Perhaps the most affected by the arrival of Alisson, he was first choice not so long ago for a full five seasons at Anfield, but lost his spot to Loris Karius and has always been backup to Courtois for Belgium.

It is not clear if he will leave Liverpool to sit on the Camp Nou bench instead, but he will be offered out around Europe.

Geronimo Rulli (Argentine, 26 years old, Real Sociedad)

For many, he should have been Jorge Sampaoli's starter in Russia at the World Cup.

After four seasons at the top, he has shaken off the tag of one for the future and has been a long-time target for Barcelona.

He is possibly now available at a reasonable price after an injury.

Marko Dmitrovic (Serbian, 26 years old, Eibar)

He made a name for himself in two seasons at Alcorcon and has consolidated himself as a LaLiga-level goalkeeper with Eibar.

His nerves with the ball at his feet are a cause for concern, but he is agile and has been a key man for the Basque minnows.