Daily fantasy sports operator DraftKings has moved to enhance its presence in the US professional sports market by entering into partnerships with three more teams in the NFL American football league. The company has signed multi-year agreements with the Dallas Cowboys, New England Patriots and Kansas City Chiefs. Under each deal, the terms of which were not disclosed, DraftKings will open branded fantasy sports lounges at each of the teams’ home stadiums. The lounges at the Cowboys’ AT&T Stadium, the Patriots’ Gillette Stadium and the Chiefs’ Arrowhead Stadium will open in time for the start of the 2015 NFL season,...