"Some immoral agents disregarded professional ethics and lured young players and their guardians to sign with them," the open letter said.
The German coach announced he is taking the clubs' challenges into account but, at the same time, will stick to the national team's rejuvenation process, including having to re-structure his defense.
Rodriguez, 29, has signed a two-year deal and joins head coach Carlo Ancelotti for the third time, after having played under the Italian at Bayern Munich and Real Madrid.
In earlier matches, sixth seed Petra Kvitova of the Czech Republic and eighth seed Petra Martic from Croatia also advanced into women's last 16. Enditem
Xilinhot became the host city of the annual national equestrian competition in 2013. Enditem
A dejected Zhang Yunjie lamented a poor finish where she could only watch as the chance for her first pro win slipped away.
"It's a very difficult competition as you can see. We followed the coach's guidance to keep the clean sheet. The draw is acceptable for us," said Shenhua midfielder Zhu Baojie.
Poland now travel to play Bosnia and Herzegovina on Monday, while the Netherlands face Italy. Enditem
Zuriko Davitashvili (R) of Georgia vies with Aleksandar Trajkovski of North Macedonia during the UEFA Nations League football match between Georgia and North Macedonia in Tbilisi, Georgia, Sept. 8, 2020. The match ended in a 1-1 draw. (Photo by Tamuna Kulumbegashvili/Xinhua)
Cruz's first match in charge will be an away clash against last-placed Atletico San Luis on Tuesday. Enditem
Zhu said they had chances but need more luck in the following matches. "We had few time to adjust in the tournament-format competition. We will try our best in every single match."