Definition: Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].
Input: CAIRO (Reuters) - To Hisham Genena  the assault appeared well-timed. Egypt’s former anti-graft chief was on his way to appeal against the disqualification of President Abdel Fattah al-Sisi’s strongest potential challenger in an upcoming presidential vote.
 Sisi ’s office referred questions to the electoral commission.
 Sisi  faces a single opponent in the election who has said  he  supports the president.
In a speech announcing  his  candidacy last month   Sisi  said: “I promise you that the next presidential elections will be a model for freedom and transparency  and that there will be an equal opportunity for all candidates.”

Egypt opposition figure sees political motive behind assault