By Andrew Porter

PHILADELPHIA (CBS) — DeMarco Murray is frustrated and apparently, he’s showing it.

According to SportsRadio 94WIP’s Howard Eskin, Murray “blew up” after the Philadelphia Eagles’ 40-17 loss to the Arizona Cardinals on Sunday. Murray reportedly threw his helmet and yelled expletives, when arriving in the Eagles’ locker room.

Murray, who signed a five-year, $40 million contract with the Eagles this Spring after leading the NFL in rushing the previous season, received just two carries on Sunday. Murray has just 606 rushing yards this season and is averaging a career worst 3.4 yards per carry.

On Monday, Eagles head coach Chip Kelly simply said, “We are just rotating our backs.”