Only four horses and riders can represent the United States at the World Equestrian Games in dressage, and those competitors were named Aug. 9.
   
The team members are Debbie McDonald on Brentina, Steffen Peters on Floriano, Guenter Seidel on Aragon and Leslie Morse on Tip Top 962.
  
Catherine Haddad was named the first alternate with Maximus JSS, and Arlene “Tuny” Page is the second alternate aboard Wild One.