Giorgos Giakoumakis thinks Mikey Johnston was the best player in Celtic training.
The Greek striker spent a year and a half in Glasgow's east end, scoring 26 goals across 57 appearances.
Giakoumakis eventually left Celtic after a year and a half at the club, during which he won a Scottish Premiership title and Scottish League Cup.
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He recently opened up on his time at Parkhead, and was asked by RecordSport who the best player in training was: "Mikey Johnston," Giakoumakis replied.
"Yeah, he was amazing. It was a big surprise for me [that he never made it at Celtic], but I think it was a mix of a couple of reasons. I think it was the fact that he was picking up super-easy injuries.
"He had issues with his muscles. The other fact, I think it was mental, that he didn't feel... From Monday to Friday, he was amazing, but then on the weekend, he didn't feel that he is a star there.
"So that's why I think he couldn't show up and be the player he could be for Celtic, because I think if he had this mental part, like, strong and feeling happy and feeling important, he would rip the league up. He was that kind of player that could dribble five, six players and then dribble also the goalkeeper and score."
Johnston now plies his trade for West Bromwich Albion.
The 26-year-old joined the English Championship club on a permanent deal last summer after he impressed in an initial loan spell.
