The Marsh brothers are set to swap places for the fourth Test according to reports coming out of England.

Despite the side not being officially named until the toss of the coin, Shaun will reportedly replace younger brother Mitchell for today's crucial Test match at Trent Bridge.

Mitchell Marsh did not warm up with the team before the start of play, instead, he was seen throwing a rugby ball with Pat Cummins out on the Trent Bridge oval.