The Rock and The Nation then feuded with Triple H and D-Generation X (DX), with the two stable leaders first meeting in the quarter-final of the 1998 King of the Ring tournament, which The Rock won. At King of the Ring , The Rock defeated Dan Severn in the semi-final match and lost to rival Ken Shamrock in the final. The Rock then resumed his feud with Triple H, as the two had a two out of three falls match at Fully Loaded: In Your House for the Intercontinental title, which The Rock retained in controversial fashion.  This led to a ladder match at SummerSlam , in which Triple H won the title.  At Breakdown: In Your House , The Rock defeated Ken Shamrock and Mankind in a triple threat steel cage match to become the number one contender for the WWF Championship . The Rock then feuded with fellow Nation member Mark Henry , effectively breaking up the stable.