Daniel Schlosser, who looked after Nico Rosberg's physical preparation, has found a new driver to work with: 18-year-old Russia Nikita Mazepin.
Schlosser suddenly found himself with time on his hands following Rosberg's unexpected decision to retire from Formula 1.
Mazepin, the son of Russian billionaire and chemical tycoon Dimitri Mazepin, is affiliated with Force India, having tested previously with Vijay Mallya's outfit.
"I am looking forward to the new task," Schlosser said.
"Nikita is also a test driver at Force India, but I don't know yet whether he will get practice sessions this year and whether I will be back in the paddock."
The trainer was contacted earlier this year by the young driver's entourage and was made an offer he could not refuse.
"I was contacted by his management as they want to professionalise the environment around him this year and saw that the coach of the current world champion was available.
"They made me an offer that was interesting to me," he added.