Somewhere, Charles Comiskey is rolling over in his grave. The Chicago White Sox announced that their ballpark will change its name to Guaranteed Rate Field. The team signed a 13-year naming rights deal with Guaranteed Rate, a retail mortgage lender. Financial terms were not disclosed.The company replaces U.S. Cellular as the ballpark’s naming rights holder. The South Side ballpark was known as U.S. Cellular Field from 2003 to 2016.