Gronik Leczna vs Slask Wroclaw Betting Tip and Prediction. In the first match of 25th round in Polish Ekstraklasa Gronik Leczna take on Slask Wroclaw. Gronik Leczna promoted in Ekstraklasa last season and their main goal is to stay in league. They are standing at the middle of the table and have a good chance to qualify in […]