Marin Dubravka joined Newcastle United on loan from Sparta Prague during the January transfer window, and the 29-year-old has quickly become the club's number one goalkeeper.

Dubravka has actually kept three clean sheets in his eight Premier League appearances since arriving at St James' Park, although he could not prevent Theo Walcott from finding the back of the net during Monday's league game with Everton.

The stopper, who has recently revealed a desire to sign a long-term contract with the Magpies, failed to deal with the cross that saw Walcott make the breakthrough, and there were some Newcastle fans that were quick to criticise the January arrival.

https://video.footballfancast.com/video-2015/mersetheworst.mp4

Indeed, it appears that some of the supporters have noticed a problem when it comes to Dubravka's ability to deal with high balls.

That said, such criticism was aimed at Manchester United's David de Gea in the early stages of his Old Trafford career, and he has since become the best goalkeeper in the world.

The Slovakian, who is valued at £2.7m by transfermarkt.co.uk, could well join Newcastle on a permanent deal this summer, but a selection of Newcastle fans have started to have their doubts.

A selection of the Twitter reaction can be seen below: