Frustrated DeMarco Murray meets with Eagles owner Jeffrey Lurie

— -- DeMarco Murray's frustration over his lack of playing time and confusion as to how he fits into Chip Kelly's offense prompted the running back to have a lengthy conversation with Philadelphia Eagles owner Jeffrey Lurie following Sunday's game, sources told ESPN.

The 2014 NFL rushing champion with the Dallas Cowboys, Murray doesn't want to be a distraction -- especially after the Eagles beat the New England Patriots for the team's biggest victory of the season. Murray, however, played on just 14 offensive plays, gaining 24 yards on eight carries.

"He's obviously upset about what happened," a source close to Murray said.

The conversation between Murray and Lurie occurred as they sat beside one another on the team's chartered flight home following the victory in Foxborough, Massachusetts. It is not known whether Murray or Lurie initiated the discussion.

Murray has struggled from the beginning in Kelly's offense. He was recruited as a downhill runner, but Kelly's system has required him to frequently run laterally and his production has plunged. He has rushed for 569 yards on 163 carries and four touchdowns this season, averaging just 3.5 yards per carry.

In addition,  Ryan Mathews could return after missing the past three games with a concussion. His availability could further reduce Murray's role.

Kelly has not yet identified a starter at the position for Sunday's game against the Buffalo Bills.