Newmarket FC player Shaun Whiter, 27, had his legs amputated after the crash. His friend Joey Abbs was badly hurt.
Jan Adamec of Shetland Road, Haverhill, was charged with two counts of causing serious injury by dangerous driving.
He did not enter a plea at Peterborough Magistrates' Court and is due before Cambridge Crown Court on 8 August.
More news from Suffolk
At the time of the crash in Newmarket on 1 July, Mr Abbs, a footballer with Cambridgeshire club Soham Town Rangers, had a flat tyre and Mr Whiter, an estate agent in Stansted, had pulled over to help.
A 40-year-old man has been remanded in custody after being charged in connection with a crash that led to a footballer losing both of his legs.