Q: In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Context: Rey Mysterio and John "Bradshaw" Layfield (JBL) with the two battling over the World Heavyweight Championship. Link Information: Mysterio returned to Mexico, briefly wrestling for Consejo Mundial de Lucha Libre (CMLL), before signing with WWE in 2002.
 Question: In what year did the wrestler challenged by JBL first join the WWE?
A:
Answer: 2002