BERLIN, April 2 (Xinhua) -- German Football Federation (DFB) president Reinhard Grindel is to resign Tuesday, according to Bild daily and public broadcaster ZDF.

Grindel was besieged by mounting criticism over his payment from a DFB subsidiary. Yet no confirmation was issued by the federation.

The DFB president who took office in April 2016, has denied any concealment of extra income of 78,000 euros (87,300 dollars) as supervisory board chief of the subsidiary, DFB-Medien Verwaltungs-Gesellschaft.

According to the DFB media department, Grindel had declared additional payments when he became the chief.

Fuels were added to the fire, when he improperly handled the leakage of controversial photos of Germany internationals Mesut Oezil and Ilkay Guendogan with Turkish President Recep Tayyip Erdogan last year before the World Cup. In the end, Oezil quit the national team after the World Cup and Grindel later said he addressed the affair wrong.

Lately the country's most senior football official had to explain for remarks interpreted as criticism of Germany coach Joachim Loew's decision of excluding World Cup key players Mats Hummels, Jerome Boateng and Thomas Mueller from the national squad.