Matěj Šín is transferring from Baník Ostrava to AZ Alkmaar. The article discusses the solidarity payment scheme, noting that clubs involved in his development (Polanka and Vítkovice) will receive only a small amount due to the brief duration of his stay with them. The move is confirmed, and the payment to previous clubs will be in the order of tens of thousands of Czech crowns, not millions.

AZ is poised to enhance their team this summer by acquiring Matej Sin from Banik Ostrava. Sin, a 21-year-old attacking midfielder, had a contract in the Czech Republic that extended until mid-2027. He is a product of Banik Ostrava's youth system and has been a regular starter there in recent years. He made his debut for the Czech Republic's national team in March of this year. Due to arrangements with Banik Ostrava, Sin will join AZ later in the preparation phase. With Sin's addition, AZ is gearing up for a possible exit of Sven Mijnans, who has been rumored to be considering a transfer for some time. Sin is anticipated to be ranked behind the exceptionally talented Kees Smit in the team's hierarchy.