Glenn Maxwell and Shaun Marsh are both in serious doubt for Australia's World Cup clash with South Africa after a brutal net session left them with injured arms.
Maxwell and Marsh were both sent for scans on their arms following a training session at Old Trafford, just two days out from the game.
Maxwell was first collected by a Mitchell Starc short ball, resulting in a blow to his right forearm. Marsh replaced him in the net, only to be struck down by a Pat Cummins ball that hit him on the right wrist less than 10 minutes later.
"The boys are off having an X-ray at the moment so we'll find out when we get the results," Langer said.
"Shaun didn't look too good to be honest so fingers crossed for him and I'm not sure about Maxi.