The Basque side had refused to let the midfielder leave for anything under 40 million euros, and earned the respect of the Bayern Munich chief in so doing
The Basque side stated earlier this summer that the versatile midfielder would only be available if a club matched his buy-out clause, and it has stood firm over its 40 million euro valuation of the Spain international ever since.
Athletic's hefty asking price prompted Barcelona to turn its interest to Arsenal's Alex Song instead, but Bayern remained unfazed and is ready to splash the cash on Javi Martinez.
"Hats off to Athletic. They told us from the start that we would have to pay 40 million euros or the deal was off," Heynckes stated to reporters. "They did not change their position during the negotiations and stood firm."
Bayern is yet to agree personal terms with Javi Martinez, but it is expected to wrap up the deal in the upcoming days.
The Bavarians have already added the likes of Xherdan Shaqiri, Dante, Mario Mandzukic and Claudio Pizarro to their squad this summer.
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