"I have an offer of a trial with Birmingham. They have asked me to join them for pre-season when they return on July 8," said Balde, a Guinea international.
"The club have already told me there will be a two-year contract on the table for me if I do well and impress during my trial period.
"Burnley have also made me an offer, but unconditionally.
"I will have to have a think about things before I decide my future."