What is 2003 royal rumble winner?

The 2003 Royal Rumble was won by Brock Lesnar. This was the 16th edition of the annual professional wrestling event produced by WWE. Lesnar won by last eliminating The Undertaker and became the youngest Royal Rumble winner at the age of 25. He went on to challenge Kurt Angle for the WWE Championship at WrestleMania XIX and won, making him the youngest WWE Champion in history. This victory propelled Lesnar to one of the biggest stars in WWE history.