FRISCO, Texas — Dallas Cowboys defensive end DeMarcus Lawrence suffered a broken foot in Wednesday’s practice that will force him to miss six to eight weeks, according to sources. Lawrence was listed as a limited participant in Wednesday’s practice but immediately had an MRI, which revealed the break. Lawrence did not practice for most of training camp because of offseason back surgery, but he recorded six tackles, two quarterback pressures and forced a fumble against the Buccaneers. He has 45.5 sacks for his career and is a two-time Pro Bowl pick.