TGL, golf league formed by Tiger Woods, Rory McIlroy, may be expanding to Chicago, Dallas, Detroit

TGL, the  indoor, high-tech golf league based in Palm Beach Gardens, apparently is expanding.According to Sports Business Journal's Josh Carpenter, there recently have been trademark filings from TGL Holdings for potential franchises in Chicago, Texas (likely Dallas) and Detroit. Those new teams would join the six original teams and compete in the league's second season, which gets underway in January.AdvertisementThe trademark filings were for 'Chicago Links Golf Club,' 'Texas Golf Club' and 'Motor City Golf Club.'TMRW Sports founder Mike McCarley, who along with Tiger Woods and Rory McIlroy founded TGL, told The Palm Beach Post in March that the league