Luka Jovic is set to be one of the main movers of this summer's transfer window, with the striker guaranteed not to be at parent club Benfica next season.
The prolific 21-year-old is currently second in the race for the Bundesliga top scorer trophy behind Robert Lewandowski, having netted 17 times in 26 games for Eintracht Frankfurt.
Jovic is currently on loan at the Commerzbank-Arena but the German club are poised to exercise their option to buy him outright for just €6 million (£5.3m/$6.8m).
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Eintracht could then decide to make an instant and significant profit on the Serbia international by capitalising on interest from Europe's biggest clubs.