UK export Amir Khan added a second world title belt in extraordinary style Saturday night, ruling Zab Judah prior to scoring a fifth-round stoppage in their 140-pound championship unification battle at Mandalay Bay Resort & Casino in Las Vegas. The win acquired the 24-year-old the IBF junior welterweight crown along with his own WBA super lightweight laurels, which he was defending for the 5th time ever since beating Andriy Kotelnyk two years and five days back in Manchester, England.