Sam Hornish Jr. to drive for Joe Gibbs Racing at Iowa

FORT WORTH, TX - NOVEMBER 08: Sam Hornish Jr., driver of the #9 Sonic Ford, greets fans from a parade vehicle during pre-race ceremonies for the NASCAR Sprint Cup Series AAA Texas 500 at Texas Motor Speedway on November 8, 2015 in Fort Worth, Texas. (Photo by Tim Bradbury/Getty Images for Texas Motor Speedway)

Joe Gibbs Racing has announced that Sam Hornish Jr. will drive the No. 18 Toyota Camry for the team on Sunday in the NASCAR XFINITY Series race at Iowa Speedway (FS1, 1 p.m. ET).

Hornish Jr. will replace Matt Tifft, who under recommendation from his doctor, will sit out the race for treatment of a disc condition in his back.

This will be Hornish Jr.'s first NASCAR race of the 2016 season.