Seattle AM Station To Host Sports Talk

Sources say that KPTK AM1090 will soon abandon it's Progressive talk format in favor of sports talk.  At this time, the Seattle market has two of it's top tier stations doing sports.  Sportradio950 (KJR) and ESPN710 (KIRO) both stations have deep roots in the community.  Sport broadcasts are not new to AM1090,  the past couple seasons, it has broadcast the Seattle Storm,Seattle's WNBA team.  Whether that partnership will continue beyond contractual obligations remain to be seen. 
It should be noted that KVI, abandoned it's Conservative talk a few years ago, in favor of oldie music hits, it returned to conservative talk recently.  AM1090 is owned by CBS Radio.