Royal coached the Longhorns from 1957 to 1976 and won two national championships in 1963 and 1969. His 167 victories at Texas is still a school record. Royal died Wednesday at age 88.
Flags flew at half-staff at the stadium that bears Royal's name and white "DKR" initials have been placed inside the burnt-orange Longhorn logo at midfield. Texas also will wear a similar helmet logo the rest of the season.
A wreath has been placed at the feet of a Royal statue inside the stadium.
Texas also planned to run its first play from scrimmage out of the wishbone, the formation Royal introduced to major college football in 1968.