The 23-year-old Ondrejka was previously signed by Royal Antwerp FC for 7 million euros, before being sold to Parma for the same amount 1.5 years ago. In his time in Serie A, Ondrejka played 28 games, scoring 5 goals. He has spoken to Tjaronn Chery and Hjalmar Ekdal about his transfer to FC Groningen, with both players providing positive feedback about the club.
Ondrejka's background is in Swedish football, having played in the youth academy of Landskrona and IF Elfsborg. He impressed during his time at Elfsborg, earning a transfer to Royal Antwerp FC. Parma later signed him for 7 million euros, and now FC Groningen has secured his services on a loan deal.
Ondrejka is looking forward to his new adventure in Groningen, citing the club's family atmosphere and the Eredivisie as key factors in his decision. He hopes to quickly become a valuable member of the team, scoring goals, creating chances, and providing assists.