Madrid - Paris-Roubaix winner John Degenkolb has undergone surgery to repair a deep cut on his leg after he and five other Giant-Alpecin team-mates were mowed down by a car whilst training in Spain.
German Degenkolb, the team's star rider, also suffered a fractured forearm in Saturday's collision with an English driver near Alicante in the southeast of the country.
"After yesterday's successful surgery on a cut in his upper leg, John had operations on his hand and fractured forearm this morning, which were successful," Giant said in a statement on Sunday.
"He will travel to Germany in the next few days for further treatment to his arm and hand. Then he will also start his recovery process.
"His immediate focus will be on recovery, which will take time, but it's difficult to make an estimation at this point."
American Chad Haga was airlifted to hospital and underwent successful surgery on neck and chin wounds with an orbital fracture to be treated once the swelling around his eye recedes.
"In several days to one week, he will have surgery on his orbital fracture too," the team statement added.
"Until then, and to recover following the orbital surgery, he will stay in the hospital for treatment."
Warren Barguil, Fredrik Ludvigsson, Ramon Sinkeldam and Max Walscheid were all released from hospital in Alicante on Sunday.
Barguil suffered a fractured scaphoid that may require surgery and will keep him sidelined for at least six weeks before he can return to training.
Walscheid has a fractured tibia and thumb which will keep him out for months.
Meanwhile, Ludvigsson and Sinkeldam suffered cuts and bruises.
"Obviously yesterday's accident had a huge impact on the team," said CEO Iwan Spekenbrink.
"The recovery of the riders is the first priority, as well as the emotional processing of the event for those who were there.
"It is clear that the team has been set back some months. It will certainly take time for the team to return to full strength, but everybody will work hard, (be) dedicated and (work) closely together to get there."
The driver of the car was an Englishwoman who was on the wrong side of the road when the accident occurred, according to the emergency services.
"Everyone on the team is in shock right now, and there are some major issues that we need to take care of, but we also realise that we have had some luck on our side," said team physician Anko Boelens.
In 2012 Spanish cyclist Victor Cabedo was killed after being run over on a training run in Almedijar near Valencia.