Complex sentence: In 2006 the RDS hosted a Smackdown event as part of the WWE summerbash tour of Europe which featured Wrestlers such as Stone Cold Steve Austin, John Cena, Kurt Angle, Eddie Guerrero and Rey Mysterio.
Split into simpler sentences: In 2006 the RDS hosted a SmackDown event as part of the WWE sSummerbash tour of Europe. The event featured wrestlers such as Stone Cold Steve Austin, John Cena, Kurt Angle, Eddie Guerrero and Rey Mysterio.