 Khan will be having his 12th pro fight when he meets Bull |
Amir Khan believes Doncaster's Steffy Bull will be desperate to cause an upset when the two meet at Cardiff's Millennium Stadium on 7 April. Khan, 20, faces former Central Area champion Bull in his 12th pro fight.
"I know British fighters are more up for it than the rest but it just makes me train harder," he said.
"I am learning all the time and I see this as another step up - Bull has fought a lot of good British fighters and will try to make life difficult."
Olympic silver medallist Khan goes into the fight on the back of a 55-second destruction of Frenchman Mohammed Medjadji in London in February.
"I am getting stronger and more experienced every time I get into the ring," said Khan.
"I have proved I can make the lightweight limit comfortably and I believe you are going to see yet another big improvement next month."
Khan could fight for a title this year and Bull, who has only lost once since 1999, may provide his sternest test yet.
Bull, 30, has just five defeats from 29 contests and juggles fighting with his day job as an assistant teaching special-needs children.
He announced his retirement from boxing last month but answered when Khan came calling unexpectedly.
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Interview: Amir Khan