Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: Police in Las Vegas have reopened a sexual assault investigation from 2009 at the request of a woman who has alleged she was raped by Cristiano Ronaldo.

Cristiano Ronaldo rape allegation: Las Vegas police reopen case