Detailed Instructions: 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].
Problem:Dereck Chisora is being lined up for a summer comeback and British heavyweight rival David Price is firmly in his sights. 'Del Boy' has not boxed since he was stopped by switch-hitting Tyson Fury at London's ExCeL Arena in November. The fight was a final eliminator for a shot at Wladimir Klitschko's WBO title and Fury is now the mandatory challenger for that strap. Chisora, meanwhile, has been regrouping and recovering from an eye injury sustained during the 10-round beating. Dereck Chisora is being lined up for a summer comeback against British heavyweight rival David Price 'Del Boy' has not boxed since he was stopped by switch-hitting Tyson Fury at London's ExCeL ArenaHeavyweight boxer Dereck Chisora is planning a summer comebackPromoter Frank Warren has revealed Chisora is back in trainingChisora has not boxed since defeat to switch-hitting Tyson FuryFellow heavyweight David Price is being lined up to fight Chisora 
 Question:That would be a big one, I think it is a great fight and it is one we will explore once we get _ firing again.
Solution:
Dereck Chisora