Simplify the following text for a Grade 5 native English-speaking person.
Original: He was previously a driver for JR Motorsports from 2007 to 2009 in the Nationwide Series and for Phoenix Racing and Hendrick Motorsports in the Sprint Cup Series .
Simplified: He used to driver for JR Motorsports , a team owned by Dale Earnhardt , Jr. from 2007 to 2009 in the Nationwide series . He also used to drive for Phoenix Racing and Hendrick Motorsports in the Sprint Cup Series .