Professor Ross Eforp is a character that appeared in "My Fair Goalie ".
He pioneered the concept of the Football X-7 in 1952, but unfortunately, his creation fails to become a reality, and eventually, he is forced to go into hiding because of his name (including his title of professor) being a palindrome. After a long hiatus, Football X-7 is successfully built by Phineas Flynn and Ferb Fletcher. Professor Ross Eforp appears toward the end of the episode, when he sees Phineas and Ferb's football stadium. He then temporarily comes out of hiding after seeing that his failed invention is finally brought to success, but goes back because people still do not like palindromes, much to his dismay.
Professor Ross Eforp's name is actually a joke on the word "Professor", as the "Ross Eforp" part of his name reads "Profe ssor" backwards.