Hoeness, 65, was re-elected as Bayern president in November after serving a prison sentence for tax evasion.
Hamburg have signed Greek defender Kyriakos Papadopoulos on a six-month loan from Bayer Leverkusen.
Niklas Sule will move to Bayern Munich this summer, alongside teammate Sebastian Rudy. But will the young defender benefit from the transfer?
Arjen Robben has signed a one-year contract extension with Bayern Munich, committing him to the German champions until June 2018.
Bayer Leverkusen will only allow Javier "Chicharito" Hernandez a switch during the ongoing transfer period if a club were to offer "crazy money."
Serge Gnabry has opened the door for a possible return to Arsenal but says he does not think he will leave Werder Bremen this summer.