The accident in question has been a spill from his motor scooter in Kuala Lumpur earlier in the week, with an injury to his hand a particular problem when it came to driving the car on Saturday and Sunday.
"In his rather delicate condition he drove a creditable first race," said the team. "With a lot of patience and a great tolerance for the pain he was going through he started to pick up pace and moved through the pack of drivers from his lowly start position." Unfortunately Rosenzweig was one of a number of drivers caught out by waved yellows coming out for an accident mid-race, and he was handed a pit lane drive thru penalty for overtaking under caution which meant he ended up only two places ahead of Haryanto.
In the second race, the heat and humidity of Malaysia together with his earlier injuries took their toll and he and Haryanto reversed positions by the end of the 21-lap sprint affair.
Despite the end results, Barwa Addax insisted that it was "very satisfied" with the work done in Malaysia, adding that it was "happy with the work carried out by all members of the team, including the drivers who were not to blame for the adverse circumstances which occurred over the weekend.
"Jake made a great effort this weekend and was on the verge of getting his best result in GP2 and get into the points, whilst Rio has shown real signs of his capacity at this level," the team added.
Everyone now has four weeks to recover from the humidity of Malaysia in time for the roasting dry desert heat of Bahrain, when the GP2 Series field reassembles in Bahrain for round 2 of the 2013 season at Sakhir International Circuit on April 19-21.