Q: In this task, you will be given a passage, a question and a list of single-word events identified from the passage. The goal is to point out all events from the given event list that can answer the question. If a question is unanswerable or none of the events answer the question, output should be empty.
Passage: Reigning world number one Bob and Mike Bryan recovered from their lacklustre tournament opener in their Tuesday's Red Group match at Tennis Masters Cup, crashing former top-ranked pair Mark Knowles and Daniel Nestor 6-4, 6-4. Earlier in the day, fifth-seeded Leander Paes of India and Nedad Zimonjic from Serbia and Montenegro claimed their second win in Shanghai, defeating seventh-seeded Australian duo Wayne Arthurs and Paul Hanley 7-6(3), 7-6 (6) in two hours. Question: What event has begun but has not finished? Events: ['recovered', 'tournament', 'opener', 'match', 'Tuesday', 'Reigning', 'Masters', 'day', 'claimed', 'win', 'defeating', 'hours', 'crashing']
A:
Reigning