MIKEY JOHNSTON is set to exit Celtic this summer on loan with a host of European clubs interested, according to reports.

The winger is still highly rated by Ange Postecoglou, but the Hoops gaffer is keen to see him get a run of games.

The Sun now say that Johnston will exit Parkhead on loan before the window closes and he has a number of options to choose from.

A report states that Scottish Premiership clubs are interested while English Championship sides are also swooping.

Ronny Deila's Standard Liege are also credited with an interest.

Meanwhile, Aberdeen manager Jim Goodwin warned his side they could find themselves out of their Celtic Park league opener by half-time if they repeat their first-half performance against Raith – despite recording a fourth win and clean sheet of the season.

Goals from debutant Bojan Miovski, Ross McCrorie and Jonny Hayes had the Dons 3-0 up inside 46 minutes and they held on to make it four wins from as many Premier Sports Cup games, notching 12 goals in the process.

But Goodwin was concerned by some aspects of their play at Pittodrie with next Sunday’s trip to face the cinch Premiership champions in mind.

The Irishman told Red TV: “There were elements of the first half that I wasn’t pleased with and I spoke to the guys at half-time just to make them aware that, if we are that sloppy with our possession and the cheap turnovers, if we do that next Sunday against Celtic at Parkhead, we could find ourselves 3-0 down at half-time and completely out of the game.

“So, as much as there’s lots of positives from the game, and of course we will focus on those and congratulate the players who have been involved in all our good play, it’s still very early days with a very new group of players and we need to tighten things up defensively.

“We have to work harder on our shape, which is something in the last week we have been really concentrating on now. The early part of pre-season was all about us in possession, those good runs, those good patterns of play and good movement, but now we have to make sure we get both sides of the game done properly.

“Offensively I am happy, defensively we need to do better.”