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Two
boxing world champions have joined the
fight of their lives. They are Vitali Klitschko, 50, and his
Wladimir, 45. Both are Ukrainian, and they have vowed to take up
to help defend their capital Kyiv. Vitali is currently the city's
. He retired from boxing in 2013, having been
champion for a
. He said: "I don't have another
....I'll be fighting. It's already a bloody war." Wladimir tweeted: "Destruction and
come upon us....We will defend ourselves with all our
and fight for freedom and democracy."
