Indianapolis Colts owner Jim Irsay teases "monster trade"

Indianapolis Colts owner Jim Irsay has revealed that his side are about to pull off a "monster trade" for an unnamed player.

The Colts were reportedly said to be in the market for a running back as Vick Ballard has been sidelined for the NFL season with a freak knee injury.

Irsay wrote on Twitter: "This day of MONSTER TRADE, The Tidal Wave Of Deal making...Shocks the system of "..Didn't see THIS ONE COMING!!!!!!" Grig's Rollin' Dice!"

Chuck Pagano's side face the San Francisco 49ers on Sunday.