Swaim (pectoral) will undergo surgery Thursday and is expected to be out for four months, Kate Hairopoulos of the Dallas Morning News reports.
Swaim suffered the injury in Sunday's win over the Steelers and now it appears as if the remainder of his season could be in jeopardy. The Cowboys will only have two healthy tight ends on the active roster in Jason Witten and Gavin Escobar, so look for the team to possibly bring on a free agent sometime this week.