This study is for patients who have bladder cancer that invades into the muscle wall of the bladder. The standard treatment for patients with muscle invasive bladder cancer is to give 4 cycles of chemotherapy with the drugs cisplatin and gemcitabine, then to do an operation to remove the bladder (cystectomy). In this study, the investigators will test participants’ bladder cancer to see if their bladder cancer has a receptor for testosterone inside the bladder cancer cells. If it has the testosterone