Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Mirko ‘Cro Crop’ Filipovic is desperate to scratch his eight-year itch when he takes on Gabriel Gonzaga in Poland on Saturday. Cro Crop lost to the Brazilian in 2007 when a first-round head kick brought a swift end to the bout at UFC 70. But he is confident he can avenge the defeat on home territory. Mirko Filipovic (right) faces Gabriel Gonzaga in Poland on Saturday, eight years after losing to the Brazilian In 2007, Filipovic (right) was beaten by a first-round head kick and wants to avenge that defeat Filipovic admitted revenge is a motivating factor ahead of the encounter against GonzagaMirko Filipovic aims to avenge 2007 first-round defeat to Gabriel GonzagaFilipovic was beaten by a head-kick from the Brazilian eight years agoHe admitted revenge is a motivating factor ahead of Saturday's bout 
 Question:Gonzaga believes that his skillset has got even better since the last time he took on _.

Mirko ‘Cro Crop’ Filipovic