The 49ers have filled the position coach Kyle Shanahan described as a head coach of training, a league source told NBC Sports Bay Area.
Ben Peterson, who has served as director of sports science for the Philadelphia Flyers of the National Hockey League since August of 2016, will reportedly take on a similar role with the 49ers. The Athletic was first to report the news on Monday. Peterson's title with the 49ers has yet to be determined, a source said.
The 49ers are undergoing a restructuring of their strength and conditioning program and athletic training staff this offseason.